Rode it a couple of weeks ago now. Absolutely brilliant, the smell pods are particularly incredible. The effects of the scenes do get a little ruined when you're the only one in your boat and the boat behind catches up, but I guess I can't expect Merlin to fix my social life!
It's not quite
Disney level. By my fourth go, it became clear that there were plenty of points where there could be more detail and fewer screens, but I don't think we can expect any more in the UK. It's a very good investment for the park and it hasn't really impacted negatively on the theme of the area as I had feared, seeing as Bubbleworks post-2006 didn't fit anyway. Top marks!