I think your going to get mised opinions on a variety of topics for Rusty's.
Personally I really like my lift, sites higher than stated, rides nice, flexes good and the price was best around.
Than I got his HD adj trac bar and frome mount... trac bar bolt broke, took 3 weeks for new one, old one fudged threads in bar... long story short I have to sleeve it so it would be strong enuf for what little trailing I do. The skid that goes under the front of the vehicle doesn't line up with my rig at all, the bolts don't line up, and if they did I would have to cut the skid to clear the sway bar mounts.
as stated you get what you pay for, but his springs and leafs are good, made out of house I would think is the reason for that.
also the prices for exhuast, and other add-ons is very good, so depending on what you are looking at spend the extra money for RE stuff that won't break (you can get good RE prices on here in the vendors section), or risk failure with Rusty's.