Summary: We've purchased several of these systems for backup appliances and they have been working great. I haven't had any issues with the iSCSI after the firmware was updated. Excellent unit for the price!
Pros: Great feature set, reliable, fast, iSCSI great, price.
Summary: Still burning in and testing but I'm reasonably impressed so far. If you're looking for a real SMB solution (verses SOHO or home use product) in four figures, you might want to check this one out. Plugged it in, turned it on, came up with no problem.
Pros: Price, supported protocols, speed, scalable design ... bang for the buck.
Cons: The documentation could be more complete and there are a couple quirks in the sometimes non-intuitive web interface.
Pros: Relatively cheap, compared to other 1U SAN products.
Cons: The iSCSI support is horrible. I get disconnects when I generate even moderate write load. Two of my three iSCSI targets were disconnected when I was first formatting them. The iSCSI support is unusable for me. Unfortunately I bought this particular unit specifically for its iSCSI feature.