Maxtrac 6.5 lift question

For the record i've searched, couldn't find anything specifically about this.

So my question is in regards to spacer vs Coilovers.

My truck will probably never see the dirt. and the mostly only see normal speed bumps
that being said will i notice a difference in ride quality? Note: i live in California and the roads for the part are pretty smooth.

i was planning on going with the maxtrac/fox coilover kit unless this is overkill for basically a brodozer.