To begin with, Match is a SCAM! They block your account access 2 days B4 free trial ends, so you cannot log in to cancel b4 THEY CHARGE your credit card. Look out for a class action lawsuit over this!
Then their entire user interface is hideous, super slow and infuriating!
Their messaging system is awful. It does not allow searching your mail, so if you are looking for a specific email with a specific content or keyword, you have to scroll down and open each one of your dozens or hundreds of emails to find it! Then, if you answer to one email and you go back to your inbox, their system takes you back to the top of your inbox, so you have to scroll down and keep clicking "next page" a dozen times to get to the last email you viewed.
Custom searches constantly crash and you have to start all over again. It takes thousands of clicks and hours of work to do what other sites do in 20 seconds. I cannot believe there are millions of idiots paying for this trash. I bet most of them have been blocked out of their accounts, like I was, and Match keeps using their profiles to build false expectations in both potential new users and advertisers.