Lost heat, cooking gas, and hot water for 2 weeks when cable company hit a gas line - wasn't the landlord's fault but they didn't help us with rent or alternative arrangements while it was being resolved. This year, pipe burst on another floor flooding my bathroom. Water was shut off for 2 days while they resolved, again no help with alternative arrangements. Still waiting for them to come and re-plaster and paint the bathroom. Those two major issues have been bad, but in an old building not very surprising. I don't love it, but the rent-stabilized rent is hard to pass up. It could be much worse!