I’ve stayed here a few times. It’s a unique experience and nice if you’re planning to explore Old Sacramento or go to a Comedy Show like we were doing. I believe I was able to check in early last time I came, but this time around they were strict on the 4pm check in time (not a fan of a late check in like that). Also, be prepared to drop $30 on overnight parking.
The rooms are small - nothing special. We stayed on the city side by the stairs, and I will say, it was loud until about 11pm with people walking up and down and talking loudly.
There were a lot of sounds early in the morning like 2-3am, we heard some lady screaming (could have been a displaced person, which there are some around that area) and cars screeching around.
All in all, it’s more convenient than anything and like I said, a unique stay, but will probably consider another spot next time we visit.