The location is terrific. While the address is Cyril Magnin Drive, the actual main entrance is on Powell Street at the cablecar turntable. Maybe that's why the bar/cafe is called Turn. The Axiom is literally a stone's throw to the Powell Street BART.
I got Room 628 on the top floor. The view is of other buildings but it was deathly quiet. Room 628 is small. I am glad I did not have luggage because there would be no place to put suitcases. The bed was very comfortable. Everything is clean and working. The TV is big and smart. In one corner there are four double electrical outlets but there isn't any near the tiny table underneath the TV. Lights in the bathroom are motion-triggered. If you have ever cursed because to turn on the shower you have to be sprayed with cold water, the shower here is controlled on the opposite end of the walk-in shower. The trade-off is slower response time. Liquid soap, shampoo and conditioner are provided. The bath towel is about six-feet only and weigh five pounds. There is no apparent exhaust in the bathroom. Lighting is good, even for reading in bed but the only switch is near the door so I used the TV remote to darken the room before sleeping. There is a safe and a small refrigerator.
There is internet in the room but I did not test its speed or reliability.
In the morning there is complimentary coffee on the Mezzanine, which serves as overflow seating for the cafe. There is a wall-sized TV also.
I found the gym in the basement to be inadequate. There are two treadmills, two ellipticals and free weights. It is key accessed and open 24 hours.
The staff is friendly, efficient and helpful.
Two doors down is a huge Burger King but the staff there was thoroughly unfriendly.