I got one of these too. I've had it on the car for a week now. Overall I'm pleased. It's a little louder than stock with a nice tone...I could stand a little louder but I'm happy with the sound. It replaced a Magnaflow 16633 catback that sounded absolutely awesome but was just a little too loud for me.
Installation was easy - got the rear of the car up on jack stands, three bolts & one clamp later and we're done. The muffler hangers are a pain but I had to replace my originals anyway as one was partly split. I used a pair of generic ones similar to OEM from Partsource. Placed them on the car hanger brackets first and used a loop of nylon twine through the hanger to stretch into place on the muffler brackets. Getting the new ones on was much easier than getting the old ones off. Total installation time including jacking the car up was about 2 hours.
I did notice some sharp edges on the hanger brackets which I filed down before I installed the muffler as a precaution so they wouldn't cut into the rubber hangers over time. Build quality on the exhaust overall is pretty good.