Doubletree Sukhumvit has got to be one of the friendliest and unpretentious place I have been. It is a very casual place where you can be yourself and nobody is going to judge you. I love the happy hour since it is free flow of drinks for Gold and Diamond members. They are really enthusiastic to serve you drinks and top up / refill any drinks that is half full...so much so that I suspect they have to reach some quota to "get rid" of their alcohol (i must have been thinking that when i was a little tipsy)...anyway...I will (and I am) be coming back to this place again and whenever my friends go BKK, I will always mention this lovely hotel! For price, location and service...it cannot be beaten!