A highly reliable RAID system with durable high speed hard disk drives.
The OS can be flashed on to a SD card thereby giving you more space for storage.
I've found that the enterprise support from Dell Customer Care is excellent.
Room for Improvement:
No LCD panel for viewing status on-board.
My Company has huge data requirements for which I bought this Dell Powervault NX 3200 with 10 TB storage.
It was selected due to very impressive IOPS performance and has proven itself.
In my company there are more than 100 users connecting to this server simultaneously and still the I/O operations are very smooth.
Dell-IDRAC provides a nice way to manage and monitor its performance.