I actually did live tuning with Ryan this past Friday 10/27 for my X37 turbo. I bought the turbo from a local member who had his car tuned by Ryan as well, which is how I was referred, and on 93 he said he was making around 250whp and on the E30 map close to 290whp. Either way, I haven't gotten any power numbers yet, but he did finish up my 93 tune on Friday and I am slated to pick him back up tomorrow night for live tuning on my E30 tune. I can say I came from a Strat tune on stock turbo (intake, intercooler, etc) to PD Tune on the X37 and the car feels like a whole new beast.
So far he has been very responsive when I have questions about some preferences he may want before tuning (plugs, DV/BOV questions, etc) and the live tuning aspect has been great. From my interaction face to face, Ryan's a quiet guy, but definitely knows what he's doing and is more than willing to provide explanations and reasoning behind changes that he's making, thoughts and progress.
At this point I am very happy with my choice to have them tune my car and looking forward to completing the E30 map tomorrow!