I've been doing lots and lots of research for next year's trip and am trying to convince DH that IB Grand is the way to go. Was asking him about the reservation issue (he normally only likes places where we don't need reservations). He said he'd be ok with having to make reservations IF there wasn't a problem getting them within a half hour or 45 minutes of when we wanted to eat. I'm torn because some of the reviews have made it sound like getting reservations can be quite difficult. We would probably go the equivalent of shoulder season.
Thanks all so much for your help. I've been reading lots of posts on the forum and you all have been a huge help!