Generally crappy quality. Even if it seems to work out-of-the-box (if you're lucky) it will stop working properly in an average of 3 months. There's a few rare rare lucky ones that have had a logitech for years, but they're the 1% exception to the rule.
The sticks lose the ability to send a steady signal, spike all over the place, and generally render the game unflyable past a certain point.
Hence, "stay away from logitech for now" (until you do a lot of research and find something you think you want or until logitech gets their act together)
Just a tip.