Ok. First the pro's. Reverbs are nice. Unit is fairly well made. Cons. Really noisy. no matter the setting it adds a lot of hiss. Battery life is expensive. Like a boss dd7 you get about 3hours per battery. I use a gretsch white falcon through a Vox ac4hw. I have to say I could notice zero difference in the 3 reverb settings. And finally. No easy access battery compartment. 4 screws, every 3 hours. Really?. And yes, i use battery power because it is still the only method to guarantee true isolation