I'm sorry the OP had a bad experience at Rajavej. I had a major orthopedic problem (badly broken shoulder, broken hip) and was admitted as an emergency. From the moment I was admitted, the treatment I received was top class; this included a team of specialists - orthopedic surgeon, hematologist and one other I forget, Surgery took seven hours and the post surgery follow-up followed the most modern techniques available in Europe and included two months of physiotherapy sessions from a newly qualified Chiang Mai University physiotherapist . Over the next year I had regular consultations with the surgeon.
My room, while plain, was large and had a comfortable bed for my wife.
In short I'm happy to sing the praises of Rajevej to anyone who cares to listen and my wife and I use its services, including the annual health checkup and vaccinations, pretty regularly.