Summary: I would not, obviously, purchase again. Too bad it is too much of a hassle to return it. Purchased a new PSU (from another vender) and it is on its way.
Pros: I like the case. I bought it because I was building a quiet rig. It only has one case fan and is very quiet. The size is perfect.
Cons: The PSU literally blew up after three days. It sounded like a firecracker. The version of the case I received is a dated version of this very dated case. It lacks some features that can be had in a newer Sonata III.
Summary: This my third build in 20 years. Thought I had messed up on the cable & wire connections. Took it to Data Doctors. They replaced the Power Supply with OCZ Power Supply. $150.00 Computer is working very well, now.
Pros: This was my third Sonata III case.
Cons: Power Supply was D.O.A. Expected much better quality from Antec.
Cons: Touching the front panel audio jack causes a short and system shut down. This problem apparently has existed for several years, as evidenced by posts describing the problem. Hard to believe Antec has not corrected this issue. Unacceptable.
Summary: This is a follow-up to my 7/8/2011 review where I gave this case a 3 out of 5 rating. It is now a 1 because of a power supply issue. The Antec Earthwatts EA-500D power supply in this case is not compatible with many consumer grade battery backups (UPS's).
Pros: PSU is quiet, good power
Cons: Not compatible with most consumer uninterruptable power supplies.
Summary: I've used the Sonata 3 cases for a number of builds since they were introduced. Not to happy with the last 2 recent builds. Rear fan and hd led not working, case seems to lack the build quality Antec's known for. Poor fitting and weak drive bay covers.