I'm not entirely convinced of the usefulness of the extra RAID levels in Sans Digital's "7 modes", without the ability to use them with USB, I don't see much point. I also don't like the RAID selection dial and "key" to open the drive sleds. Everything else, I like. The finish, the LCD, compact size. $170 seems like a lot, but look around at the competition, this falls right into place with everyone else. If you then include the extremely handy battery powered laptop drive enclosure, it switches from "right in line" to "a hell of a good deal" I actually fail to understand why the MS1U retails for $50, but I'm not going to complain.