Well worth the purchase in my opinion. Of course I've only got 1 other Rush concert in my collection (Rush in Rio). Runtime is 2 hours 42 minutes. There's some additional skits that are on the disc, so it's not just concert footage the whole time.
Bass level is a bit higher than the studio tracks but it doesn't seem out of place. Dynamic range, well it is a concert after all so don't expect too much there. Crowd noise is not an issue at all. Video is a bit soft in the darker areas but definitely benefits from the HD transfer.
I got this in-store for $20 at Best Buy yesterday. Looks like Amazon won't have it until December 20th.