Being a glorified steering wheel would lead me to think its a bit pricey/gimmicky at $300 although it's clearly quite a bargain compared to other camera support equipment. At the right budget point I'd just rent it but I'm considering building one for more everyday use. It wouldn't take that long to construct and I'm not so sure it would be of any lesser build then what Bogen offers. Here's the link to the DIY version in case you're interested.
http://www.studentfilmnz.com/modules.php?n...ticle&sid=6