Good Nite Inn SFO, aka Ramada Inn SFO Airport, was once part of the Holiday Inn chain, but this property was built on the cheap.
The rooms are big and nicely appointed, but you're charged for everything. Local calls are 10 cents a minute for the 650 area code. Other calls are billed even higher. High-speed Internet is available at $4.95 for one hour and $9.95 for 24-hours and available from your room. There's one Internet station in the lobby for access. The complimentary shuttle is every half-hour and departs the airport 15 and 45 minutes after the hour.
The walls are thin, as noise of the jets nearby can be heard. Swimming pool hours are from 9am to 9pm, but the surrounding area of the pool area is dirty from not being washed down frequently. There is a barbershop on premises and a coin laundry and ice-maker nearby. The mini-coffeemaker, air-conditioning, and furniture are nice. Complimentary breakfast, consisting of a coffee and a muffin, starts at 6:30am.
The bed was comfortable enough, but I couldn't get to sleep for a long while.
We booked this on Hotels.com, but found it for even cheaper on Travelocity.
Be aware that this property is near the SFO airport and not in San Francisco, and if on public transportation, be aware of getting the last train or bus back (usually midnight) to the airport, unless you're driving or taking a taxi (there goes your savings). It's great for an early-morning departure to be close to the airport the night before to minimize traffic commute times and congestion. Otherwise, find a spot in the city and pay more; it'll be better to be close to where you'll spend your time.
Consult 511 for your travel needs.