They are great, love mine. Very accurate conversion. Probably a straight drop in for you. My Shadow needed some minor filing on the Kadet slide and I had to take out the 13lb spring for a 15lb to be able to fire reliably.
I love mine. My CZ75B has all stock springs and such, and I didn't have any issues switching. The conversion is very accurate and reliable. I highly recommend a good loader, you'll want to shoot a lot and the mag's are rough on the thumbs.