Sharing my experiences with the sat22 clone as i am using it:
The clone from FT is not perfect. For example, the wick hole is supposed to be 2.5mm , but is smaller - so its not a 1:1. So it is difficult to get it to wick well, with such a reduced wick hole.
Another issue with it that if you try to fill through the fill hole, then the eliquid comes out through the wick hole immediately, pressure buildup - really irritating, only option is to use a needle tip , so that a part of the fill hole can let air pass
Another drawback is that its difficult to use any other drip tip with it, and i dont much like its stock drip tip as it has a very large bore, significantly reducing the taste on the tongue.