Here's the Breakdown on Fusion
Location: Unbeatable. Two blocks or less from BART, MUNI, and a cable car line. No dragging suitcases onto a street car.
Service: Speedy check in, very nice staff. As I had a conversation with the front desk clerk, he told me that apparently some travelers are not aware that a hotel (any hotel) will put a temporary authorization on your credit card before the final bill is tallied. This is a common practice of hotels and rental car agencies world wide. Welcome to the 21st century. Enjoy your new BetaMax.
Cleanliness: No grossness to report. Yes, I checked for bedbugs: none.
Room fixtures: Everything in working order: lights, tv, etc.. Shower water became hot quickly, in room climate control was nice. I stayed in February so I cannot confirm whether or not the room had a/c.
Security: Room locks were sturdy and worked well. The elevator requires room key activation and the stairwell is near the front desk with camera coverage.
The View: I had room 429 with an inside view, i.e. a view of the other rooms right across the corridor. Otherwise, this hotel is between tall buildings with no real view to speak of. San Francisco is one stunning scenic view after another, so you will not suffer for lack of scenery. If you insist on a skyline vista out of your window, walk on by.
Breakfast: Nothing remarkable, but nice. Pastries, fruit, juice, coffee, etc. Just enough to get you going and out. Breakfast is on the 5th floor. The ice machine is on the 4th floor. Request a high room.
Size of the room: Yes, the room I had was very small. There was no more than 3 feet of space between the bed and the wall in any direction. I had to store my suitcase in the surprisingly large bathroom. I did not object to this, but I was disappointed to discover no traditional table or desk with a chair in this room. The room was just too small for any more furniture.
Noise levels: With an inside room on the 4th floor, I had absolutely no night club or street noise. The walls were a bit thin, so I could hear my neighbors' activities. If you honeymoon here, you may see an admiring crowd giving you a standing ovation when you exit your room.
Overall recommendation: Absolutely yes. Despite some mild issues mentioned above, this property is a great option for those looking for a home base from which to conquer San Fran but still want a real, grown up hotel.