Haha no worries! I stayed the same year after
in August 2013.
The whole Stay on Main thing is a bit weird as I'm pretty sure it was just the exact same hotel and they booked people under either name. I booked under the Cecil hotel name (completely oblivious to anything) and I checked in at the main hotel but I'm sure when we were there we were referred to as being in Stay on Main, we were definitely on one of the floors they kept aside for the hotel part rather than the weirdos living there! We never saw anyone who didn't look like they were a tourist/fellow traveller or anything that concerned us.
There were always staff on reception and around the lobby (actually very helpful too haha) but I don't recall if there were more or less than an average place, it was a budget hotel either way so my expectations weren't exactly the highest
Not sure about a bar or restaurant, I don't remember seeing one so if there was a bar it was small. They had a breakfast area with tables and chairs out and we got buffet breakfast included. Everyone I saw there each morning looked like they were just like us, about to head out for a day of sightseeing etc!
The hotel was clean, room was perfectly fine and because we were only in LA for a few days we really didn't spend much time there, just sleep, shower, breakfast and head back out.
There was an ensuite toilet and sink to each room but the showers/bath were communal with a couple at the end of each floor. That was the creepiest because everytime we ran a tap we thought about the water tank... but other than that it really wasn't that bad. We were travelling as 2 20 year old girls and felt safe