We have a contract with them, so they come out to do fertilizing, it's a total of eight treatments for the year. They were probably out here two weeks ago. You can pay one time for the year or you can pay per service. They come when they say they're going to come. Just one person comes to complete the work. It takes approximately an hour to complete. I've used other companies before for the same job. TruGreen has the best price, and they're very responsive, I don't have any issues. All they do is stick a little yard sign on to say they've been there, so yeah there's no problem with leaving a mess. They call the day before they come. If I have issues with recurring weeds they will come back for free and treat those areas. They're very professional, they seem very knowledgeable. They came out and did an assessment of my yard and what it would benefit from. Just like I say they're the best price around.