Yeah. The expensive hardware raid setups are just too much money and too much work. I like the dual parity and variable drive size unRAID uses. Don't have to worry about drive size differences.

You don't get increased write speeds like some raid setups would have. But a cache drive and a scheduled mover make it even faster. I setup a 10G direct connection from my NAS to my main computer and it's awesome for video editing.

I could see why you'd use a hardware raid if you have like 20 users or something all writing video. But I'm never going to fill a 2TB cache drive in a single day before it can move them to the array while I sleep.