Welcome to the CW9 world. I've had mine for 3 years. Run the first 200 rounds as they recommend and you'll be fine.
I just the Blackhawk size 1 IWB but carry it in the small of the back position. For me the left hand model works perfect for my right hand draw - it sounds weird but it positions the grip in the correct position in the SOB.
My Blackhawk has been my carry for the past 2 years and it is holding up very well.
Has anyone tried the Don Hume leather holsters with the CW9? I am liking it for the price right now. I currently have a minotaur for my XD and LOVE it but its a long wait and I need something to hold me over now.