Even with my limited knowledge of server systems, the crash course I took to understand the optimizations and features on the inside of the chassis leave me with a feeling that IN WIN covers all the basics, and still offers a good layout with a serious amount of air flow. The case is loud; there is no way around that issue. With this not typically sitting anywhere around you like your gaming rig, sound is really a mute point in most applications.
I did have the issue with the sloppy fit and function of the tool-less expansion card latches. Even though I would like to have had a functional set of latches, IN WIN does offer the option to use screws for mounting the cards, even if they don't provide the screws. On the plus side of things, the temperatures of the 775 machine I installed were seriously low. The Sans Ace 92mm fans do quite a job at forcing air throughout the chassis, and if you can benefit from the use of the shroud, temperatures theoretically will get better. Adding a 120mm fan to the rear of the chassis isn't "needed", but with all that force of the Sans Ace fans in the middle, a bit of draw to help direct that force out the back will help.
This case is out on the shelves and is ready for the picking. I personally don't have the need for a server system, but if I was to opt to build one, this chassis covers everything I would think to want. Simple looks, a good layout with options, support of ATX, CEB and EEB systems, and room for everything you would need, want, or even think you would want to house your components. I still liked IW-PP689, and with the relatively low asking price, I have to say it is worth what most shops are asking. I do advise a bit of shopping around to get the chassis closer to the $150 range of some stores rather than the inflated pricing of e-bay or other lesser known retailers.