When you get OBRed every reserve block and not used is when it sucks. Rather than getting the good hotels near things to do, with decent Gyms, you get stuck in the lousy hotels near the airport without a fridge or microwave.
Getting Stuck at the Wooley aint bad, but getting stuck at a red lion with only a cold breakfast is much more likely.
Being home domiciled with a positive space seat to your OBR with a paid hotel and per diem is much better than commuting the day prior to a crash pad and commuting home the day after, but being a senior FO with a cush schedule has kept many from taking the upgrade.