When it comes to nic (and many other vaping issues) there are tons of different opinions. Some nics give some people a peppery taste and others detect nothing. I have found one that works for me but it may not work for you. I have tried all of the nics sold in SA and I am lucky that the one I use is the cheapest and is sold by a very reliable and friendly vendor.
My advice is to find one that works for you and stick to it.
I'm pretty certain that some of the "brands" contain the same nic from the same manufacturer.
I know which one you mean, thanks Puff! Think I'm going to try them