Cheap private room in San Fran
If you get the 30% off deal, this place is decent value. I stayed here 5 nights. The location is convenient to loads of cool little pubs and diners (Lefty O'Doul's is great) and a short stroll to the BART station which goes to the airport. The bar downstairs has a couple of decent deals and a quirky attendant who is good value. There are computers and a printer downstairs which is free to use.
Unfortunately the wifi cuts out a lot and is slow at the best of times. There are a few homeless people out the front. The room and bathroom are very small and don't have a fridge or microwave so you are forced to eat out. Most tourist attractions are a long walk. 
Some guy was protesting very loudly against Hotel Frank across the road every day when I was there. He had a megaphone and didn't stop all day everyday, sometimes starting as early as 6am. I found his catchy tunes entertaining at first but it got tiring pretty quick.
5 nights is about the maximum I could recommend here but its not the worst.