I've had mine for about 3 months now and love it. My wife complains about the bill still but I think she would do that anyway no matter what the cost.
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Enjoy. It is a very versatile machine that allows a multitude of functions. You could be a one man band or one of 800 instruments (if you think wind and roller coasters is an instrument).
I highly recommend Joe's tutorial web site as well. It is a really good launching off point.
The manual that comes with it is good bathroom reading.
Play and ask questions. I think you will be very happy with your decision.
Congrats,
- Brian