I got this to replace a Boxee Box that I'd been using for about 18 months but that had been gradually getting more sluggish and unreliable (especially since Boxee have discontinued support for that product). I bought this with 4Gb of Kingston ram, then used a USB stick to install OpenElec on to a SDHC card. The whole thing took about 15 minutes to set up and has been running like a dream ever since. If you're after a very simple HTPC solution that works a lot like an appliance I wouldn't hesitate to recommend it.
If anything I feel like putting OpenElec on it means I'm not making the most of the little box, but it's almost silent and very fast for what I'm using it for, so that's enough for me.