Searching for others was a wonderful experience; I could choose by 'most responsive' (the default setting), last visit, age, and distance, as well as basic demographic information, physical characteristics, and type of relationship wanted.
The layout of the search results is customizable (list or pictures), and all methods of contact available to you are within a click from the search page - you can look at their profile, however it's unnecessary if you know you want to make contact.
While women can access all of the features of the site for free, they need to first confirm their identity.
Flirt offers subscriptions to men, and free lifetime access to women after confirming their identity, all for the purpose of flirting, chatting and hopefully meeting up in person.
The site focuses heavily on the 'naughty' side of dating, although a significant number of men I spoke with were looking for marriage.