Hi Richard,
We have the 2551 and it is not a problem for us, no odors, privacy not an issue since we have been married 46 years. Nice to be close since I get up a few times at night. The RV is 2 years old and we have stayed in it about 6 months so far, still love the layout.
However, there was one time last summer when we took the grandkids out for a short trip, my 10 year old grandson used the bathroom in the middle of the night and it woke me up from a sound sleep with quite a shock. I forgot how much pee volume and force a ten year old can produce. We don't have the grandkids often and it only happened one time so far. Wish I could pee like that!
Welcome to you and your wife,
Bob