worked great for me.. you should be atleast slightly technically inclined, but you're using this forum so you're atleast halfway there.. I have k&n, open airbox, and d&d exhaust.. I remapped the stock ecm so this was best option.. I can give more details if you need to know
I bought a custom map from ASB, specific to my setup, but it's possible to use DL and a dyno and create your own map, based on your analysis. <-- too much work for me.... actually the only difficult part of getting the DL to work was finding a MS box that had a 9 pin male serial port.. otherwise you have to order a usb/serial adapter from Radio shack...
wish DL made a *nix platform version.. would've saved me alot of trouble... but overall it went extremely smooth, no issues whatsoever, and my bike runs alot better now.. also I can reset my TPS and AFV whenever I want.. :D