We are starting to plan a trip to SF, May 17-23. I'm dismayed by seeing "no rooms available" or "only one room left". Are these ploys? It seems like I should have plenty of time. We will rely totally on public transportation; and want to see baseball at AT&T plus in Oakland, Alcatraz, Chinatown, Fisherman's Wharf, bike or walk Golden Gate Bridge, etc. We are thinking Union Square is the best location for this? Also we can't afford anything too pricey (I'd like to stay in the $150 range)--but safe & clean is a must. Currently I'm thinking the Baldwin. Would that fit our criteria? If I book now and decide to cancel, does that usually go OK? I realize I'm asking a lot of questions here but hope you all can help me as I plan.