I find
Tinder to be successful; and the guys I meet feel the same.
The guys I match with aren't those model-ish types that have all the girls messaging them; they're nerdy artsy Asian guys with glasses
that by most people's standard aren't "hot." I find them to be A++ because they're my type though
Moral of that story is that even if you aren't a mega looker, just write a cool bio and have some complementary pics and you should be fine.
And I also find that
it works for any type of dating.
I have met people who became
hookups, friends, business contacts, party-goers, let's-go-do-our-mutual-hobbies-together types, casual dating, and even serious dating
It operates on the principle of first impressions; just like meeting people in real life.
I give it an A+
However, based on some articles I have read;
it is not so successful for the 38+ crowd as it is more of a youth site.
Head to POF for hookups and Match for serious stuff; if you are older than your late thirties.