A couple other notes about S15, its next to Tom Tom's formerly Hollys if you need real coffee although I prefer going across to GC Cafe 4 min walk. Coffee is better but I do mix it up. Tom Tom is better to see and be seen. GC Café - Soi 8 098 090 9000 https://maps.app.goo.gl/uaUtH7iUiRrwqLHc8 Laundry is around the corner on S13. Shop around, rates are 60 to 95 baht per kilo. Hi Speed is the cheapest and best but you have to walk quite a ways to it . Fun as you are catcalled by all the massage ladies. There are also no frills salons for inexpensive mannies, peddies and foot scrubs on soi 13. On Soi 11, there is my favorite restaurant Vegaterie. Don't let the name scare you off. They have great wonderfully tastefully spiced dishes and purple rice bowls. One of the best fast food places I've eaten in Thailand. Not cheap but a great respite from all white rice and noodles. I also like Asok being a little closer to Ekkamai and Tonglor for my other activities. Terminal 21 has already been mentioned. Also great if you take transit from airport as you can get off at Makkasan and one stop to Sukhumvit on MRT. When I stayed at Galleria, or Soi 7, or Nana, I would take Skytrain to the end Playa Thai and double back on BTS to avoid 2 transfers (Skytrain, MRT, BTS.) - pain in the ass. And yes, you will walk the gauntlet at night but didn't matter to me as I had a different LB on my arm with the odd GG every night lol. I'm not a Nana guy, but I don't find the walk that bad when I choose to go, usually during the day for a special massage.