I inherited the P180 from my brother and it has turned out to be a very good case. It's good looking, well thought out, and keeps noise to a minimum, and would earn 5 stars were in not for a couple of crucial design floors.
The first of which is the positioning of the PSU. The power supply sits right at the bottom of the case, which is normally fine, until you need to hook up a 4-pin CPU power chord to the motherboard, which you then can't do because the CPU power socket is too far away - I ended up having to split the cables and make them longer myself, just to connect the power chord.
The second of these flaws is the reliance on Antec-specific drive rails; being an inherited case, some of the rails went missing along the way, and when it came round to putting in an extra drive, I couldn't do it due to a lack of rails. It was a case of sacrificing my DVD writer or spending £8 on rails from the Antec spare parts store.
Other than that, the case is very good; it looks good with the aluminium finish, and all the features are quite well thought out in terms of noise reduction (rubber insulating pads for hard disks etc). The principal difficulty is it's difficult to justify spending £100+ on this case unless you're a real enthusiast, since it's just too feature rich for most people's needs.
This is the best case I have ever owned- truly amazing. The cooling is great, it's whisper quiet thanks to the tri-cool fans and for looks it is very hard to beat. The first thing that struck me about this case is that it is quite heavy! This isn't a problem though- it just adds to the quality feel of the plastic fittings inside and out. The hard drives are in retractable bays which makes changing them over soooooo much easier. There is oodles of space for up to eight hard drives and four 5.25" drives. The door opens to reveal the front of these drives, one floppy space, two 120mm removable dust filters and the power switch. With the door closed it looks plain and simple yet due to its size quite imposing and definitely very serious! The power supply is at the bottom with a fan in between itself and the lower 4 hard drives. Cooling for the CPU is maximsed by the possibility of having an additional fan in the roof. Installation is easy thanks to the thumb screws- just make sure you don't get the hard drive bays retention thumb screws mixed up as you cant get the side back on if you get it wrong!
The P180 is truly a revolutionary breakthrough in case design. Dual chambers isolate the power supply and CPU into separate cooling zones with up to 5 configurable fans. Three-layer sound-deadening panels dampen noise even in very high-performance systems. Ease-of-use, sleek design and Antec's reputation for quality make the P180 worthy of being the first in a new category called the Advanced Super Mid Tower.