Should I change from air suspension to coil front and rear on 2008 Mercedes-Benz R350

Just got a crazy quote from dealership for front air struts. Did research and found people change to coils and it's a much cheaper replacement. Is this good or bad?

Asked by for the 2008 Mercedes-Benz R350
cost effective but may change your ride. very common for mbz to have issues after warranty runs out,this will only be the 1st issue
Thanks so much. Do you recommend any shops that will handle this job for me.I'm in the Los Angeles area. Also what's the typical cost for this service change?
west coast autobahn in orange ca 714-997-7888 talk to steve
Will do thanks a lot
Qualified Local Mercedes-Benz Shops
Qualified Mercedes-Benz Shops For This Repair
921 N Parker St
RepairPal Shop Scorecard
Technical Ability
Tools & Equipment
Customer Service
Customer Amenities
(714) 486-0367