For a lot of shops, spacer lifts are pure profit. If you didn't mind a rough ride and never got off pavement, they are OK.
It's actually pretty easy to do the lift yourself. You can get the coilovers already assembled and it's about like replacing shocks. The UCAs are easy to replace as well at the same time. I would stick to no more than 2-2.5 inches of lift with the coilovers and use 1/4-1/2 inch top plate spacers for any additional lift. Spacers over 1/2 inch should be avoided if ride and handling are important. I have only a 1/4in spacer on the driver side to account for the Taco lean.
