I am looking at using cheapoair because, well, they are cheap! Anybody have experience with them?
My very limited experience with them has been that anytime I find a cheap fare and go to look at it in more depth, it's never there. After having this happen more times than I care to remember, I just don't bother to check their site anymore.
Otherwise, what Steve said probably applies. They're likely fine as long as nothing goes wrong. If you have a more complicated trip or are likely to need extra assistance, they're probably not a good choice for you.