OK. I got my rp1000 a couple weeks ago. Believe it or not it sat in the box for a week. I finally got it out and hooked it up to my amp in the 4CM.
First impressions. The setup and ability to develop useful patches in a very short time is awesome. It's simple to program and the X-edit software is very easy to use. I had 12 gig worthy patches set up in an hour. That was doing quite a bit of playing at gig volume (the wife didn't care for it much because I was in the living room cranking it! hehe) to ensure I had the right levels on the patches.
Most of the patches I made were using stompbox OD's, chorus and delay's. I did use the octiver on a couple things too. All of which were very convincing. I was very sceptical because I've tried to go this route in the past and it never worked. Also, I set up a couple clean patches (I have a JCM 800, no clean channel), an acoustic patch, and a couple modern high gain patches. All sounded good. The acoustic patch is going to take some tweaking to get to sound REALLY convincing, but it'll do right now with a cover gig
I have just scratched the surface on this thing, but I think this is really going to work out for me. The box is amazingly simple to use and doesn't take a lot of tweaking to get great tone from it. I was actually excited about this piece of gear after the run through. Someone mentioned earlier or in another thread that the x-edit wasn't that easy to use. But, I thought it would be difficult to be much easier. It was just like a bunch of stompboxes to me.
I think if you are looking at the mid level modelers, or an effects only box, you can't beat this thing. Hell, I paid more than my last two stomps the RP1000 cost me.