Hi xFreya!
I'm a PAI girl, about 3 months post-op now. I went alone and had no issues at all. Pai does a really good job of taking care of you from the moment you get picked up from the airport to getting dropped off for your return flight. I never felt lost or uncomfortable being there alone. You get someone assigned to you who pretty much looks after you. Things like calling you for appointment reminders, sending the driver to pick you up, taking you to the hospital for your pre-surgery tests, etc. They really make you feel welcome and if you have any questions or concerns you can just call them. If you stay at the Salil Thonglor, they have a relationship with Pai, so its really nice because they'll cater to your needs. They brought me breakfast to my room every morning after the surgery

I had a really early return flight home which meant I had to leave really early, but Pai even called me which was at 3 in the morning to let me know the driver was on his way, which I thought was incredibly nice of them to do. If someone can go with you that's even better, you'll have more support and you won't get lonely. But, going alone is totally doable in my experience and wasn't hard at all. Netflix worked on my laptop so I had endless entertainment hehe