They regularly mow, trim and treat the grass. Treating is for weed and pest control. My back yard gets little to no sun and has very little grass. But they keep it neat and trimmed. All outside areas of my property are blown off after each mow/trim, leaving the porches, patio and driveway free of debris.
I've bought pine straw from them on several occasions and was very satisfied with the job. I did request additional work once to add rocks/blocks under a hilltop fence, but was never able to get that work done. I think they do a very good job for a very reasonable price.