i have been with mr. david for many years (18 i think)and have not been disappointed yet. i have had some technicians that were better than others but none bad. never have called in to complain, if that tells you anything. the one we have now, treavor, is the absolute best. he is fast, thorough, aware of everything, very respectful to my wife and me and represents parker exterminating very well. i have not had any problems with pests (except my neighbor) but that is beyond davids scope. thank yall for everything.............g.