I was a little concerned after sifting through reviews about the Profile since they seemed to vary quite a bit. I'm more than pleased with this RDA. I'm using it with OFRF mesh (Kanthal) and cellucotton for wicking with no issues. I bought this to replace the Serpent Mini 25mm RTA since I kept breaking the tank glass (4 times). Flavor is close to the Serpent, which I think is impressive. It surpasses the serpent in vapor production easily. Not to mention ramp up time is near instant and it's exceedingly easy to build on - install mesh, stuff it with cotton, and juice. Awesome. Its overall performance is similar to the Mutation X V4 dripper, which was my favorite atomizer for a long time...until I got tired of dripping every few pulls and the leaking.
For what it's worth, I'm using the Profile on the Pulse X mod.