What a shame - the staff really let this hotel down!
I’d just like to start by saying that in terms of the physical structure, cleanliness and décor there is nothing wrong with this hotel, in fact it’s actually quite charming. The problems we faced were all with the absolutely awful customer service from numerous members of staff throughout our stay. 
We’d requested a twin room and whilst we know that requests cannot be guaranteed we were told by the receptionist in a very snotty and obnoxious manner that they could only accommodate us in a double. No problem. We checked in, dumped our bags and headed back to reception to ask for some restaurant recommendations. The receptionist, who was busy chatting to another member of staff for 5 minutes before she even acknowledged us, rolled her eyes and informed us ‘there’s loads of places around’. Helpful. 
At 5am the next morning we were woken up by the occupants of the room next door banging around and shouting – this went on for a good few hours before they turned their TV on full blast. We spoke to the receptionist later that morning and explained that we’d had an 11 hour flight and it was the last thing we needed at that time, and she seems positively disinterested but loosely promised she’d have a word. 
The next morning, low and behold the same thing happened – we went straight top reception to see if they could help, or even offer us another room but again simply received tragic customer service. We therefore decided to check out a day early and find an alternative hotel as, quite frankly we were tired and sick of being treated like we didn’t matter. When we checked out there was no apology or offer of a refund for the final night.
This was our first experience in San Francisco and it did dampen it somewhat. With a good staff team the hotel could be fabulous but as it stands my advice would be to stay well away.