The price seems pretty good imo. But I have to ask you something (I hope you know this already, but better safe than sorry ^^)
You do know that it's only a MIDI controller, I hope? You won't be able to get any sounds from the keyboard itself. So if you don't have anything to connect it to already, you will have to buy some more stuff, and you might end up spending more money than you would have done if you've bought a keyboard with onboard sounds.
But if you're well aware of this, and you've already got some nice softsynths to connect it to, I'd say it's a good deal