Ashley Madison is a dating site for people who are married or in a relationship, but are looking for something more. The site has done a good job branding itself, so it has a large member base and the people who are there are all there for the same things. My search for local matches returned a good selection of members.
Ashley Madison has many features of a normal dating site, but it also has some features that are unique to their niche. The site has a panic button that immediately takes you off Ashley Madison without logging you off, in case you need to make a quick escape.
Their Travelingman feature lets you send up to 30 female members messages in whatever city you're going to be visiting, to try to set up rendezvous. One of the things you'll notice about the site is that instead of paying a monthly or yearly subscription, you pay for credits which buy various things. This is a different payment model than other dating sites but it certainly works for this kind of site.
There are 3 packages you can buy: Introductory Package (100 Credits), Elite Package (500 Credits) and 100% Affair Guarantee Package (1000 Credits).
As for that 100% Affair Guarantee- yes we were interested in the details too. Here they are:
Basically, you need to have a photo, message at least 18 people a month, send 5 "gifts" a month, instant message for at least 60 minutes- then not get lucky and have an affair within 3 months.
Overall Ashley Madison is the leader in finding an affair online so if that is your goal then this is definitely the site for you.