Just did this swap on my PP car, pedal is going to take some getting used to but I like it. To add to the wheel fitment, Motegi MR135's at 18x8.5 +45 do not clear the face. I needed a 7mm spacer to get roughly 3mm of clearance between the spokes and face of the caliper.
Did you do the adaptions, red rubber grease and high pressure bleed?
Once I did that, pedal feel was back to stock.