I will chime in to say that i would also recommend going earlier or much later for Dinner. 3/4 ish or if you can work it, a late Dinner after 9pm. This might make the wait for a table shorter.
I dined there once with friends, and waited about 30 minutes. No pagers, you just have to hang around outside at the bottom of the entrance stairs and pay attention to the names being called.
I had heard mixed reviews before trying it out, but ended up liking it. I had also gone in with a voucher discount..and my friends as well. We all enjoyed it, but be forewarned it is a very LOUD atmosphere. Do not expect to have in-depth conversations!
The food was good to me...and my friends seemed to like their dishes as well. Yes, you pay a bit per plate...but you are paying mostly for the 'hip' atmosphere.
All in all, i found it worth doing once. I enjoyed it, but i am in no real hurry to return.
There are far too many other places to still try!