I have to say that since "Clarke Power Systems" bought out the "Covington" dealerships service and attitude have gone down hill fast! (at least for buses!)
The only "Clarke" facility I know of that is still getting good word spread by local bus owners is the Nashville location. (and I believe part of the reason for that is because of all the entertainer buses in/around "guitar town" & that Gary Davis is involved in the TN Motor Coach Association)
I know all my friends (and myself included) have quit using the Memphis location and my friends down around Chattanooga and Knoxville have had bad experiences @ both places!
Also a good friend of mine who used to have a great working relationship with the one in Greensboro, NC has said it's the same over there not too!
From what I have personally experienced down in Memphis it appears all they care about are the big fleets (of trucks) who have no clue if they are getting "the straight scoop" or not and just issue a PO#! And also they have a contract retro-fitting a bunch of old Schneider National trucks with new engines/trans/rear-ends so they could care less about the guy who only has 1 bus converted into an RV or the guy that only owns 4-10 charter buses and has to watch his $.
From what my friends and I have seen if you take in a VISA Platinum card or a BLANK CHECK and tell them "find and fix the problem" they'll be yer new best friend!