Pros: This was my first build, and I had a friend assist. Case did not cause any difficulty in the assembly. Came with all the hardware needed for instillation. Plenty of Room inside. Easily fit the CoolerMaster Hyper 212+. Very quiet with fan on medium setting. Lock on front is a plus for me with the 18 month old hurricane I have running around the house. With the Hyper 212 and system fan good enough airflow to keep CPU at 50 deg, and sys temp in low to mid 40's running prime 95. I do not have vid card installed.
Not sure which Antec Sonata case you have, but if you go to newegg's reviews and type in "hyper 212" in the feedback search you will probably find your answer.