Joined Mate1 last month and figured its time to let people know my thoughts.
Advantages Simple to use, higher than average real women on the site (although not quite as many as WeJustFit Id say), average number of fake profiles, easy search function.
Disadvantages Should offer a better deal for longer term subscriptions. There should be a way to get all your messages together once a day rather than your inbox being bombarded with emails every half an hour (seriously, I spend ages deleting them all).
All in all, its 7 or maybe even 8 out of ten for me. Better than average but there are still superior options.