I chose the Bunkhouse for my daughter and her friend Leah and here is their impression:
Our stay at the Bunkhouse was very welcoming. The rooms are simple but well taken care of and very clean. Most of all the location was exceptional, right next to Union square and a very easy hub for accessing the rest of the city. When we accidentally forgot to check out on time (that's how fun SF was!) they were extremely kind and forgiving and allowed us to store our luggage for a couple more hours. Thank you, Bunkhouse it was wonderful!.