If you're considering hotels, on the UWS here are bunch of lesser expensive options, I can't comment about the conditions -
Hotel Belnord on W. 87 just off Broadway (right across the street from the apartment building with the same name) - I know people who have stayed here and said the rooms are small.
Hotel Newton on Broadway between 94 and 95th.
Riverside Tower Hotel (Riverside Drive and 80th)
Finally, there's the Hotel Belleclair on Broadway and 76th. I have friends who used to stay here whenever they came into town and liked it.
When are you planning on coming? Because I occasionally see people mention they have a place available to rent.