I haven't had any problems with the expression pedals, but I suspect that with heavy use, they might a bit sloppy.

let me echo what you are going to hear everywhere about the FCB... out of the box, this is a swiss-army knife midi controller good for MANY things, although a bit complicated and intimidating to understand and setup

You might need to get your hands a bit dirty withthe setting-up, but once you understand how it works you'll realize you could even control your

Expression pedals are a bit flimsy feeling, but all else seems solidly put together.5 stars if the expression pedals were a bit nicer, but at this price it's a no-brainer.