I went flying with Kenneth Irvine of West air aviation when I was visiting Vegas. He was very approachable (and looks like Burt Reynolds funnily enough) and really knew his stuff. We did a walk through of the sectional map for Vegas before we went flying which gave me more hands on knowledge of the airspace.
The C172s that they fly are a bit old and the one I flew didn't have a glass cockpit, but I actually found that more enjoyable than having the modern cockpits with its fancy displays. We flew that baby around Nellis AFB, Lake mead and along the mountains. I was a little disappointed we couldn't fly through the Class B airspace near the strip, but that wasn't really in our control either!
The entire outfit was very professionally run and I enjoyed my combined instructional/joy ride with these guys. Also thought the price was quite reasonable. Would definitely come back next time.