System installation was a snap with the Osiris. While a removable motherboard tray is always nice to see in a mid-tower design, there is a good deal of space in this enclosure so installation was not really too difficult. Overall aesthetics is good and the structure is very sturdy.
While there are only three fans included in the design, they are placed in optimal locations to handle all of your cooling needs. Running an air cooler, there were never any heat problems even when running a pair of very hot video boards. The heated air was effectively removed from the system and airflow appeared to be near perfect. It is always good to see a manufacturer take a good look at cooling needs, and it is safe to say that Hiper has done a very good job with this model.
While not fully toll-free, the Osiris does a good job of getting close. You will still need to drag out that screwdriver for the mainboard, FDD and hard drives, but that is about it. Everything else can be installed using the many thumb screws. Even the side panels use a little hinged latch at the top instead of the normal screws on the back panel.
As far as price goes, you can expect to shell out roughly $160US or so for the Osiris enclosure. While not the cheapest case around, it is well priced for the features it includes. With cooling and the windowed design already taken care of, you just need to install your components. Overall it is a decent value, but not meant to be a bargain basement product.