On the upside, the profiles are brief, which allows you to make decisions quickly. The downside is that short profiles make it harder to figure out what people are looking for. Knowing very little about a person can also make initial messaging more challenging. You'll need to wade through a sea of profiles, which makes it easy to pass over people you might have given a chance under different circumstances.
OkCupid is willing to work to find you a mate. Throughout the signup process, it gathers enough information on you to make informed decisions before recommending potential dates. It's a good happy medium between eharmony, which makes you answer a litany of questions before signing up, and Zoosk, where you can browse after entering the most barebones of data. Better yet, OkCupid lets you do a lot for free, including messaging other members.
One thing to note if you don't fall into the cis-hetero dating pool: While most of the apps reviewed here are inclusive, there are those that are friendlier to the LGBTQ community than others. For example, OkCupid goes beyond forcing users to choose between being a male or female, including options like Hijra, genderfluid, and two-spirit. If you're a man seeking a man or a woman seeking a woman, you'll want to steer clear of eharmony: It doesn't even give you the option of a same-sex match.