I have a Digitech RP-250 and I am ecstatic about it.
I used to just use my Vox Valvetronix's AC-30 and the delay on it together and got a perfect Edge tone for WTSHNN and "Bad".
But I bought the RP-250 and it has everything and more I think. But it doesn't work on my Vox amp so I have to use a Peavey (so I took the logo off the amp so I don't look like a doof using it in public
)
But the RP really sounds good- But you really need to tweak the F*&# out of it to get it to sound great. I have tones like Edge's shimmer on WOWY and COBL, and effect he uses on the into on the Vertigo Tour before COBL, Elevation with the intro and all, SYCMIOYO, One, The Fly, I had Mysterious Ways on my old one before I accidentally plugged it in with my computer cable of the same size and fried it, All the early tones, Even Better than the real thing, and my favorite for soloing- The Elevation Tour version of Bullet the Blue Sky.
I also can sounds like Peter Frampton, Pete Townsend, Hendrix, Jimmy Page- The list goes on!
But the default patches that come with the box are awful. I had to make all the patches myself and it took about half an hour+ of solid tweaking on each to get them- But I think it's worth it- They sound great. Only $150
But the Vox still sounds better when I want to play WTSHNN though.....