RFX is da bomb!
i highly recommend it, despite all the shortcomings of reliabilty. I bought mine 18 months ago, but unbeleivably have only just been able to use it! It's a long story but the the original one I bought was faulty and it took Turnkey in London and EMU a full 11 months to admit to it and replace it. The replacement turned out to be completely defective too and by that time they started giving me excuses that it was out of warranty! a year and a half after buying it I still had no idea what it sounded like. finally i managed to get them to ship me a replacement that worked although it cost me money and, more importantly,
a lot of time.
anyway, to cut to the chase, it's finally up and running and I can say that this is an ESSENTIAL part of any E4 setup. in a week of using it it's totally transformed what I can do and what possibilities i can dream up for my music. It comes into it's own in a live context. I did a gig last night and the material i played was well over a year old. I'd played it several times on previous tours - however this time I had the chance of reconfiguring my banks through the RFX and using all the EQs, distortion and reverbs to master my finial output. The response was that people who'd been on previous tours with me and were familiar with my tracks were coming up to me and saying "what were all these incredible new tracks and when had I writen them?!?" Amazing how something so simple can fundamentally alter the whole experience of what you're hearing.
Still lot's more to discover such as midi control and stuff like that, but definitely try and buy one if you can find one. At the current price it was a STEAL!! There are been a few in London going 2nd hand at ridiculous prices (for the amount of power you get anyway).