So far, I've not played the Prelude, but it seems obvious that it is almost identical in all but a few minor details to the GW-8 (which I have one sitting next to me as I write - on loan, guys, don't wet yourselves!
), so I think I've got a good handle on it.
Is it a 'pro' arranger? Well, no, but OTOH so many people tell me that there is no such thing as a 'pro' arranger anyway, they are ALL home units!
But for the way I use an arranger, for the type of live sound I like and the 'space' in the styles that I like, if I was stranded on a desert island with a prelude or GW-8, I wouldn't be offing myself, at least! Push comes to shove, I COULD go out and gig on one of these (with some prep time), more than I can say about any other sub-$1000 arranger.
It's not a G70, but then again, neither is a T3 or a PA2Xpro!