I took them 3 times (SR -PP, PP-SV, PP-SR) , no complaints comfort-wise, but not having a toilet on board comes with challenges for someone who as a habit drinks a bunch of water in the morning , compound that when trying to re-hydrate after a night of heavy drinking, yes they have bathroom stops but I found myself having to hold it a few times anyways , why have a "luxury" bus without a bathroom on board , makes no sense at all