It depends on which suites you are trying to compare to a Vista suite and the ship. If by “balcony” you mean “veranda”, then no, there are no additional perks other than the extra space provided by the veranda itself. But if you’re wanting to compare a Vista to a Silver Suite, then yes, there are additional perks. These are detailed on the SS website as unlimited premium Wi-Fi, an espresso machine in suite, complimentary laundry (pressing and wet cleaning), as well as daily canape service.