Khao San Road tourist circus. Overpriced rooms, noise until 4 AM, surrounded by gap year kids and drunk backpackers. Whole area smells like pad thai and vomit.

Silom near BTS stations ฿800-1200/night decent guesthouses. Sukhumvit Soi 11 area ฿1000-1800. Youll actually sleep and access real Bangkok, not backpacker fantasyland.