Summary: Easy to setup. Installed two identical drives, plugged it into the network, ran the setup. The automated process took care of the rest. Data transfer was acceptable for my needs (did not benchmark but it wasn't sluggish). Still going strong. So far it's a winner.
Summary: Excellent NAS especially for the price! I use this as a home for my iTunes library, image my Windows machines as well as the TimeMachine backup for my Macbook Pro. I have an older NAS that I RSYNC to from this NAS so it is backed up twice.