One word - ick. Not up to snuff with Kimpton's usual quality.
I will preface my review by saying that I understand what Kimpton is trying to do with Hotel Triton. It's eclectic and funky, appealing to hipsters and other young souls who want to rebel against the large hotel chain feel. And clearly it's working - it has a very high overall rating on Tripadvisor.
The lobby is actually quite charming; it's colorful and buzzing, a place I'd like to relax. I arrived around 9pm, straight from the airport, and the check-in process was quick and easy. That's where my positive feedback ends, though.
The complimentary fruit water in the lobby was empty, with no cups, and instead a tray of dirty dishes was in its place. Fine, I realize this sounds like a first-world problem, but when you're paying $200+ per night for the Triton, keep the amenities flowing.
Moving on, the entire hotel feels like a really old rundown apartment building that was redone into a hotel. For anyone who has lived in a big city, you know what I mean. Really small dark elevators, creaky floors, and it just seems dirty, even though you know that it's cleaned on a daily basis. 
I walked into my room and literally just stood there for a few minutes trying to take it in. I was overwhelmed by a smell of plastic-y cabbage, which never went away. Also, the heating/cooling system? Provided by an a/c unit in the wall (please see picture). Fine for a hostel but at a price of $200/night, I don't want to feel like I'm 22 again living in my first apartment. The bathroom was ridiculously small and seemed dirty, probably just because it was old, but not impressive at all. 
Walls were so thin that when my neighbor turned on the water in the sink, it sounded like a flood was happening in my own bathroom. My room overlooked the street and the windows were sub-par so you could hear all of the street noise... Looked out the window (please notice the wood blinds - very inadequate at keeping out the morning light) and saw a bunch of cigarette butts in the ledge right outside the window where they were clearly discarded by previous occupants who were smoking out of the window.
The bed was the one redeeming quality of my stay. It was just like other Kimpton beds - very comfy with a nice down comforter.
Overall, the quality of a hotel in this price range is in the details... And the details at Hotel Triton were disappointing. I would be embarrassed if I had recommended this hotel to my family or to a client. I stay at Kimpton properties often, and I usually enjoy them, so if you're loyal to the Kimpton family, I would recommend staying at one of their other SF properties.