I got my FC-Mod back in October and I enjoy it, but it was sitting silently until I got this new hydrotube, which makes a nice mouthpiece for the mod. I tend to use it for reclaim and high temp stuff, but find the diffusion of both pieces too airy for daily use. I like it better without the ashcatcher and using the showerhead only, but then the volume is cut down pretty dramatically. It is easy to keep clean, though because of that, it's also easy to break parts. Mine was pretty straight, no obvious flaws, and I like the concept, but I still choose the UFO everyday over the mod. I would give it a 29 out of 42.