My test charge at an EA station got me a max rate of 204 for a few minutes at the start. I don't recall exactly, but I think I was at 20% when I started.My experience is that EA's 150 and 350 chargers are the same speed if you're the only one using the station.
Pretty sure that a 150 station won't go that high, and there was 2 cars using "4" stalls. Four in quotes because there was a ChaDemo-only stall and a L2/240V stall that I'm not including in the number 4.