Your best results will come from a local company, over a large national chain.
I see great results from Top Lawn, who is based out of Commerce Twp.
Tru-green does have a few good applicators, but most of them are new, and just learning what it takes to get results. The local companies have to do quality work to survive, so the hire experienced guys.
I know most of the customers I have who use Tru-Brown have weed issues, and one had they're lawn COOKED. Several of my customers use Top Lawn, and have very thick, dark green lawns.