The insulated area is indeed raised a tiny little bit - but not enough for a puddle. Pic looks about the same as the "authentic" I have.
And while I haven't leaked out the airholes, they are a little low, and I tend to oversquonk enough to get a bit of a gurgle. Just firing clears it well though.
I'm liking it, but it hasn't taken "top spot"...
As a $15 ready-to-squonk atty, though...it's real good. Looking forward to comparing to an O-atty, but haven't got one yet.