Thailand is a nice country to visit, being the second economy in South East Asia after Singapore; it is quite developed compared to the region, and tourism is already well implemented. Thai people are genuinely nice and welcoming. The only thing I regret is they usually don’t speak English, so I found it quite hard to communicate with them. If I compare with Cambodia, which is poorer, people there speak English, I remember I could even joke with Cambodians kids.
When visiting Thailand, plan it for several days or weeks if possible, (it will probably depend on where you coming from). The country is large and although I’ve seen a bit of it there are many parts of the country I have miss. I can think of the Southern part known for its beaches or the North with places like Chang Mai where you can do a lot of outdoor activities among other things.
My last comment is about the food; it is good, better than good, exquisite.
They have it all, rice, noodles, meat, fish, spices, sauces, vegetables, fruits…you name it. I cannot remember a particular dish I like but generally speaking a foodie in Thailand will not be disappointed.