How does the Autospring compare to the Daystar coil spacer kits?

Also, how will an add-a-leaf affect my ride?

2006 F150 KR 4x4 SC

Got a quote from 4-Wheel Parts...

Daystar 2.5 leveling kit - $134
Pro-Comp 1.5 Add-a-leaf - $88
Installation - $300
Shop Supplies & Alignment - $110

TOTAL - $632 + tax

 

THey both do the same thing and cost about the same. The Autospring kit is just easier to install because you don't have to take the coilover apart.