Hello and welcome!

We have met already, kind of, over adult children. . Lol
So, I've never personally used Wismec, but I bought the rx200 for my son when he expressed interest in vaping at a little higher wattages than the first gear I had him try..
That model had good reviews, and I was able to pick one up for 20.00 on clearance so I got it for him... it's been his daily driver ever since and he's had no difficulty from it.
But like the first poster pointed out, with vape gear it's model to model with many products. .. when you get into the brands which can do no wrong, you ARE getting into higher price points and specialty items.
VapeAMP (Vaping American Made Products) has regulated squonkers for a lower price because they are importing the board... it kind of takes it away from being American made to a degree, but it's worth a shot for the price as the company is good... they mostly make mechanical mods so this new squonker they have is a bit outside their wheelhouse - but they are selling them... lots of them.
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Reo (another American company) makes squonkers - mechanical
HOH has a few things, also American made
House of Hybrids
Provape closed, but if you can pick up a provari or a radius they are worth it.. (its nearly all I own.. lol)
Other than that you have a few others who sell mainly through Facebook etc and are pricier and more specialized in nature. One a few months back was wanting 600 (yes, that's dollars) for a mod... pretty though.
But if you want American made, you have to seek it out...