We like everything about this case other than the inner HDD trays that you need to remove from the front of the case to gain access to. The HDD system can only be called consumer-ish. It's not what you would expect from a rackmount system, but then again, this is a $89.99 rackmount case. Looking at other cases in this price range, we found none with easily accessible HDD bays and the others are not built to the same standards.
The RSV-L4000 is one of the nicest entry-level rackmount cases we've ever ran across. That said, I've owned cases that cost twice as much as the L4000 and were not as sturdy. Getting past the wonky drive bays, the rest of the case is very nice and best of all, it's quiet while keeping the components cool.
Sadly, Rosewill also doesn't include drive rails with any of the rackmount cases in the portfolio. Newegg lists the add-on kit for $39.99. If you install the case in a dense environment, you'll need the rail kit, which adds to the final cost.
Overall, the low price even after buying the rails trumps the drive bay shortcomings. If you want drive sleds right from the factory, then we recommend purchasing the RSV-L4411. If you want to add your own, several companies make tray-less cages that are great add-ons.