I would agree on the cutting and welding in certain systems, as you need to pay extreme attention to produce a great end product.
But there are some bolt-in applications that make ease some of that pain. After a few phone call discussions with the Chassis Engineering guys, they seem (to me) to have a sound set-up and not as intimidating to install, granted that you feel at least comfortable with a decent amount of wrenching / some fab as needed along the way.
