I'll just re-iterate what others have said here. First of all this is a networked dating site, which means a lot of the matches you get on here are actually from other sites. I realise this is standard practice in this industry, however if you're joining the site in the hope of being matched with Academics (which let's face it, is the basic premise), then you'll be sorely disappointed.
The other thing to be wary of is that the site substitutes standard placeholder photos for people who have not uploaded a photo of their own. And it's safe to say that these photos are fairly attractive models. I feel this is downright misleading, not to say unethical.
The final warning to make is that you will initially get a lot of messages, which can lead you to believe that you have the potential to make a lot of contacts, and that lots of people are interested in you. However, these messages are almost all completely fake as they are sent automatically on your behalf to potential matches. In other words, you will be sending messages to other users without your knowledge, and you will receive messages supposedly from other users, but who have never even looked at your profile.
All in all, just stay clear. If you are unlucky enough to have fallen for it and subscribed, then good luck working out how to cancel. Once they've got their claws into your credit card details, they'll keep on billing...
Pros
None
Cons
The whole thing is a con