I recently received two of these little RTAs from FastTech. I have not seen them mentioned much on these forums and thought a review will be useful.
There are two versions on FastTech, I bought the A model which is slightly more expensive, but had more reviews and seems to be the HCigar clone. It does have one glaring flaw which I did not realize would be an issue until I started building it, it does not come with any SS mesh. The B model does come with mesh, but has fewer reviews and does not have an extra airflow pipe with a smaller ID.
Links:
Model A: http://www.fasttech.com/products/1411/10006709/1570800
Model B: http://www.fasttech.com/products/1411/10006709/1609300
Manual: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CCEQFjAA&url=https://shop.strato.de/WebRoot/Store11/Shops/61925514/MediaGallery/Taifun_GS_-_User_Manual.pdf&ei=mP2SU9ucA8XQ7AbVxIHQCQ&usg=AFQjCNHvCFKnor4Niicm8EBQkv_XrBMsbQ&sig2=qwAKgwvKA6E9eI1HSz9qxg&bvm=bv.68445247,d.ZGU
Pics:
Taken apart

As it comes, with the bag of spares and little screw driver for no apparent reason
Simple 1.56 ohm micro coil, ID 1.5mm, 28G Kanthal
Long wick to feed through into the tank
Deck wall screwed on an ready to feed into the top cap. (I forgot to take a pick of this step)

Results!
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The more I worked with this atty, the more I realized it was designed with regulated devices in mind. It is basically a rebuildable clearo. It's quite a challenge for me to decide where it fits. It is very easy to build and fits well onto smaller Mods, including the VTR without modification and even an EGO style battery. Which seems to place it in an excellent position as a first RTA for people to try without buying a more advanced mod. On the other hand, wicking it has been a nightmare and the build that most people recommend requires the use of SS mesh for the feeder wicks. I do not have any mesh at the moment, so I have not been able to try this method.
It does not have airflow control as such. If you purchase model A however, it comes with an extra airflow tube with a 1mm ID rather than the stock 1.5mm ID. You can see this tube protruding in between the posts in the pictures above. The draw on the stock tube is in between the Aerotank when it is fully open and the Kayfun. It is loose enough to be able to do lung inhales, but clearly not made for it. The feeding actually benefits from this by creating a vacuum in the chamber that then allows juice to be pulled through from the tank.
Flavour is excellent, on par with my Kayfun. The vapour is very juicy and the flavours are crisp and pronounced. Vapour production is only slightly less than the Kayfun. It is quite a cool vape and thus also very smooth.
Overall, I think it is a good buy and well worth the effort to get it working.
EDIT: I had a setback with the wicking of this tank. I cannot in good faith recommend purchasing it until I get my hands on some SS mesh to see if the build with SS mesh feeder wicks will perform as advertised.
There are two versions on FastTech, I bought the A model which is slightly more expensive, but had more reviews and seems to be the HCigar clone. It does have one glaring flaw which I did not realize would be an issue until I started building it, it does not come with any SS mesh. The B model does come with mesh, but has fewer reviews and does not have an extra airflow pipe with a smaller ID.
Links:
Model A: http://www.fasttech.com/products/1411/10006709/1570800
Model B: http://www.fasttech.com/products/1411/10006709/1609300
Manual: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CCEQFjAA&url=https://shop.strato.de/WebRoot/Store11/Shops/61925514/MediaGallery/Taifun_GS_-_User_Manual.pdf&ei=mP2SU9ucA8XQ7AbVxIHQCQ&usg=AFQjCNHvCFKnor4Niicm8EBQkv_XrBMsbQ&sig2=qwAKgwvKA6E9eI1HSz9qxg&bvm=bv.68445247,d.ZGU
Pics:
Taken apart

As it comes, with the bag of spares and little screw driver for no apparent reason

Simple 1.56 ohm micro coil, ID 1.5mm, 28G Kanthal

Long wick to feed through into the tank

Deck wall screwed on an ready to feed into the top cap. (I forgot to take a pick of this step)

Results!

The more I worked with this atty, the more I realized it was designed with regulated devices in mind. It is basically a rebuildable clearo. It's quite a challenge for me to decide where it fits. It is very easy to build and fits well onto smaller Mods, including the VTR without modification and even an EGO style battery. Which seems to place it in an excellent position as a first RTA for people to try without buying a more advanced mod. On the other hand, wicking it has been a nightmare and the build that most people recommend requires the use of SS mesh for the feeder wicks. I do not have any mesh at the moment, so I have not been able to try this method.
It does not have airflow control as such. If you purchase model A however, it comes with an extra airflow tube with a 1mm ID rather than the stock 1.5mm ID. You can see this tube protruding in between the posts in the pictures above. The draw on the stock tube is in between the Aerotank when it is fully open and the Kayfun. It is loose enough to be able to do lung inhales, but clearly not made for it. The feeding actually benefits from this by creating a vacuum in the chamber that then allows juice to be pulled through from the tank.
Flavour is excellent, on par with my Kayfun. The vapour is very juicy and the flavours are crisp and pronounced. Vapour production is only slightly less than the Kayfun. It is quite a cool vape and thus also very smooth.
Overall, I think it is a good buy and well worth the effort to get it working.
EDIT: I had a setback with the wicking of this tank. I cannot in good faith recommend purchasing it until I get my hands on some SS mesh to see if the build with SS mesh feeder wicks will perform as advertised.
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