There were some bugs... unfortunately more than just the odd customer. However I believe we have them just about all fixed and already have a BETA available with 90% of them. We should have a dot release of a stable build very soon, so you wouldn't be waiting long.
I'd take advantage of the special now, and if you want to be conservative wait a week for the dot release before installing it, otherwise install the beta and it should work other than the odd customer at this point.