I've never dealt with pest companies. Are they generally on time? Are their prices fair? Are they selling stuff that breaks often or constantly needs to be r

I've never dealt with pest companies. Are they generally on time? Are their prices fair? Are they selling stuff that breaks often or constantly needs to be refilled? Is it something that home-owners can do themselves with just a simple kit (different kits depending on the terrain, geographic location)? Can the "middle man" be cut out?