No point in worring about it, mine failed a couple of months ago and while it has been an in-connivance when it has been really nice and sunny ( yea right) I have manualy operated the hood.
If nothing it has showed me that you can take the roof out, the fix is not the end of the world.. I do have a hartop and it will be going on in a few weeks time, i will also order a replacement motor but will not fit that until next year as it would be pointless at the moment.