I quite like the LL roomettes - bathroom stench and wheel noise were never noticeable or a problem for me. You do have to be mindful that anyone on the platform at stations you stop at along the way can look right in - the windows are right at platform level. I'll often leave the outside window curtains open on the upper level when I go to sleep, so I can look out at night and have the sun wake me up in the morning, but on the LL this is a less attractive option.