The power is great, as the "head snap" is back when I need to accelerate. It really livens up the 2.0L, and makes the wagon just a little bit meaner when it matters.
I can't comment on the mild increase in boost peak, but I can comment on the great customer service. I was in there early for the DP install with a 1pm appt for the ProTune; they got the car on the dyno about an hour earlier than planned, but I left my AP at HOME! Three hours later they were still happy to get the car on the dyno, and stayed late to give me the sweet tune.
Anyone who questions their customer service is off their rocker. I'll be heading back soon for a 16g/meth and ProTune soon enough.