My husband and I took a 28 day cruise a few years ago and are leaving this week on a 26 day cruise. We were a bit concerned when we took the 28 day cruise that it would be to long and if we would get a bit tired of it but we LOVED it..... didn't want it to end after that 28 days. We are very much looking forward to our upcoming one!!!
I would highly reccommend taking the 35 day cruise.