If you want to own your home outright as soon as possible or save on interest payments, a 15-year mortgage may be appealing.
However, since the repayment term is shorter, your required monthly payments will be significantly larger than those on a 30-year loan of the same size. That means you need to be sure you can comfortably afford the higher payments.
A common rule of thumb says you should spend no more than 30% of your income on housing costs. If your monthly mortgage payments (plus property taxes, homeowners insurance, home maintenance costs, etc) falls below that threshold with a 15-year loan, it may make sense for you.