The price is right, but It'd seem much easier to just have an outboard effect. Stuff like chorus and delay I put in the FX loop normally. If you don't have multiple axes though, it might be cool.
I do have a main axe but i was thinking more in terms of having the controls at your finger tips so it can be so easily varied. Was hoping some1 may have used one of these so they can tell me if its basically the same quality as some crappy stomp box, ie rogue, or whether they actually sound good. But i guess for the price its worth just finding out