We've been using a Behringer XR18 for the last few gigs and it's been quite the revelation. Impressions so far; metering is great, so setting gain levels is easy, as is keeping an eye on send/returns and bus outputs, plus an RTA which helps with overall eq'ing. Fully parametric 5 band eq, comp & gate on each channel is brill. The effects modeling is amazing, shame there's only 4 stereo fx slots but that's only a minor gripe. Still a lot of stuff to get a grip on like the dca groups and ultra