So i'm fairly new to the idea of air suspension or air bags for adjustable suspension and I want to get it on my 1995 wagon. Are they good for daily use? I'm planning on getting them so that if i deflated the bags it would sit the car on the ground. What brands are the best for price and how hard is an installation? Would i need to take it to a shop for them to do it or would i be able to do it myself?