It's absolutely amazingly awesome wicked. There's really nothing out our way that compares. Well, places like Panorama, Fernie, Kicking Horse come sort of close, but really, Whistler is ground-zero of the sport. C.O.P. in Calgary is not bad for diversity I guess but the sheer vertical you get at Whistler ... there's really nothing that compares. I met with riders from all over the place, Australia, New Zealand, U.K., U.S., .. they come from all over to ride Whistler. Each run has you riding for like 30-40 minutes at a time, minimum (and I didn't even make it up to the top half of the mountain) and you're fully engaged every second of the way. There's no .. how can you describe .. there's no "down time" or "slow time" between the technical parts for you to sort of catch your breath. It's drops, berms, jumps, ladders, single-track ... There's something for everyone. And you'll catch glimpses of the pro riders too since most of them call Whistler their home base too. Really neat to see these guys (and up and comers) ply their craft. It's totally worth going to, just be sure you're in good bike shape, really easy to get yourself into trouble there as I found out.
In all honestly, depends on what you're riding right now, but you might want to consider renting if you do go. I don't think I'd want to ride 6" travel bike out there, I managed to fully compress my 8" travel bike on a couple occasions.
A-Line is soooooo much fun. Yeah, do go if you get the chance.
