I've done a couple of the premium subscriptions just to see if they're worth it. My experience was that you got to see people who had liked you but that the app just hadn't shown you yet, but other than that it didn't lead to any increase in dates. It doesn't show you any more often to people so although it allows you to swipe an unlimited amount of times, you might as well be screaming into a void. Just building up a larger list of people you've said "yes" to who will never see your profile. The "boost" functionality might get you an extra match or two, but with most conversations going nowhere the ROI is terrible.