I have'em in one of my touring bikes. I think they are great alternative for someone who has back problems or can't stand being on the drops on drop handlebars.

A few pointers:

* Do a google search for trekking or butterfly bars, click on images on top of screen and look at the many different set-ups people have used with these bars. Look for something you like and go from there.

* As someone else said, buy a much longer stem or you'll be really cramped in the cockpit.

* Brake levers position is important for some. You'll notice that there is a transition going from the aero position (part of bar farthest from saddle) to the upright position. Your brake levers will be in one of these locations. My best friend sees himself mostly riding in the upright position because that's where the brake levers are. He says it makes him comfortable to know he can press on them at any given moment. Defeats the purpose of these bars though.

* Mounting Ergon grips (the very short ones recommended for gripshifters are the only ones that you can fit) will make a HUGE difference in comfort.

Here are mine - Ergon grips are backwards (couldn't make them fit the "right way"), but function equally well: