i'm tuned with BNR, have the ZZP V3 turbo and tuned to 23-24 PSI. that said, i also have 60 LBS injectors (from BNR) it runs really rich at full throttle.
it could be just me, but i have had nothing but good service from BNR.
it took a couple summers for me to get where the car is at now. if you drive a 2011, to go to higher than 19PSI boost you'll need to update you Map sensor.