Boss ME-70, it is okay. I got one used on ebay last year. Not very useful in the effects loop. Not so great in the front end either. I got this before I bought the Mark V.
One good thing about it, makes for a great practice amp. Just plug in some head phones and you are set. I was going to resell it but never know, where I live power goes out often. Since it is both battery operated and or has an external supply jack. But for an effects processor for driving an amp, not the best choice.