Ian
I was in the position, having spent all my life with straight running boats, but having had a go at full size sail (Enterprise / Fireball) some years ago, I saw the Moonbeam when Dave (Metcalfe) revealed it at the model boat show in Warwick a couple of years ago. It looked good, so even if I was a crap sailor at least it could sit on the windowsill.
So I had a chat with Dave over the course of the show, he took me through the building (he had the prototype at that time) mentioned a few problems he had, but were being rectified for the production models, and even pointed out that a straight runner like me would be able to sail it------------
Ok that was two years ago, money did change hands and duly a giant box arrived.
I would say go for it, its a great model, clear instructions, room for adding your own little thing, and great to sail in light winds and med winds (not yet brave enough to try strong winds)
Oh, and don't keep it on the windowsill fully rigged if you have a cat