I really enjoy mine. Very little rise from the muzzle. I really liked the sights...very easy to view and the moment I bring my gun up my eye is on the sights!
I just traded my 9mm and .40 Shields for the Performance Center versions. These two models exceeded my high expectations. Trigger, sights and muzzle flip are all outstanding. I'm glad that I didn't listen to the pessimists that scolded about noise and flash from the ported barrels. It is no more than the regular Shields I owned previously. These two models are my daily carry choices.
Kudos to Performance Center on two outstanding guns.
Still waiting for mine... I do work at a LGS, so I'm kinda hopeful that it won't be long. In the meantime, I did buy a new Shield (#2) with the factory night sights. They're Trijicon and do very well in the daytime.