I plugged mine in, and it didn't automatically launch like they said it would, so I went to "my computer" and saw it in one of the drives and clicked on that, it launched straight away, and I just had to tick the t's and C's box, select English as the language, and that was it. It also worked fine on my laptop too...and for the price I paid for it, it wouldn't have been a great loss had it not worked, I'd have just sent it back for a full refund...and I have to say I've had a couple of hassle free refunds for the sit up channels before. Go for it, that's what I'd say! 'cause it is absolutely brilliant!
And even without it launching immediately, I had it up and running in less than 5 minutes.