I started using Irish Green because previous home owners had used and front lawn looked good. Previous owners didn't treat back yard. I thought I could manage on my own but failed. I called them back and now am having them treat front and back yards. Back yard is quite large(10 times larger than front) and not cost effective for me to do on my own. Irish Green is more cost effective than other companies I've researched and certainly less expensive than doing on your own. Very efficient, highly recommend.