There are some municipalities that calculate taxes differently based on the number of nights in an extended stay hotel with a kitchen in every room - if you hit a ‘short term apartment’ threshold, you will occasionally get a discount on taxes
I usually prefer the extended stay option for anything four nights or longer, even with IHG where you take a points hit, for the larger living space, fridge that will be at least half sized rather than dorm room size, dishwasher, and provided tableware that lets me eat my take out food in proper plates like a civilized person