Got the Svoemesto Kfl+, not sure if it's V1 or 2,but this thing is pretty awesome. Just ordered a beauty ring for my provari, because the little gap is driving me crazy... And the kfl likes to loosen itself in my pocket.
I've got a Penelope v1 and v3, and the build quality is comparable.
The major difference I've found is that the Penelope leaves a bit of juice in the 510 connector because that's where the air hole is. The kfl+ doesn't leave a drop in there.
Also, for some reason, the kfl+ gives a bit less muted flavor than Penelope.
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