Solid, but check it with your keyboard
I bought the FC7 to replace a Roland EV-5. I like the sturdy construction (compared to the Roland's plastic), but it definitely weighs more when I'm hauling gear (then again, it stays put on the floor). Strangely, though, I can't get it to work as well as the Roland pedal with an M-Audio 88es. It seems the "sweet spot" for volume change is only a few degrees of travel. From 0-30% it's quiet, from 30-50% it's controlling volume, and from 50% up, it's full blast.
When I hooked it up to my Yamaha S80, though, it was a completely different story. Response was smooth, and the "swell" feature worked as advertised. I'm going back to the Roland for a gigging pedal, but I'm keeping the FC7 for my studio setup. My advice is to check it with your keyboard, and play around with the adjustment settings before you toss the packing material.