Yeah I use it for guitar. It sounds pretty metallic to my ears, but I've not really used any other delays so I'm not sure about how good or bad it is, purely as a delay. Basically I got it because it has delay and pitch shift in one, and thus can be used to make helicopter noises (like in that audioslave song) There's probably other wierd noises can be made. One drawback is that there's no footswitch, although there's an input for an 'effect remote' which I guess might be a footswitch. I'm pretty clueless about pedals. Some quick photos I took (excuse the crappy quality). It's from the 80s and looks like an old sci-fi prop: