With these units, is there and maintenance issues to deal with? Say 50K miles down the road, do they suggest any fluid changes or such?

While I have some Eibach's waiting to be installed, I started wondering about the periodic cost of new struts every X miles. If servicing the coilovers is easier plus it allows a greater range of suspension tuning, I may opt for this instead.

I'm not looking for a slammed car, in order of priority:

good ride quality
improved handling with adjustability a plus (I'm not pleased that after-market strut cartridges are so slim for the LS.)
Relative low maintenance.

Your thoughts?