You'll want to maintain as few appliances as possible, but not at the expense of extended vacancy. (biggerpockets.com)
If you charge too much, you might be stuck with extended vacancies; if you charge too little, you run the risk of having an investment that isn't profitable. (homeunion.com)
Raising the rent too high (above market rent) can mean extended vacancies, leaving you to cover the mortgage on an empty apartment for several months. (sparkrental.mysmartmove.com)