FYI - I called Harmony Motors a couple of weeks ago (Feb 2017) to make an appointment to have them do a brake fluid flush. I was told that they no longer do the brake fluid flush on Sprinters... something about not having the right machine anymore and that they didn't make enough money off that work to be profitable. (No doubt. The last time they flushed it they only charged me $99. This time I called 2 independent shops and the dealer and they all estimated $180+ to do the flush).I am on the fence with Wilson and Service. My gut tells me that it is improving, but I got completely taken on a 30k service on a 07 Prius (They do Toyotas as well). I was reluctant to take my FL Sprinter to them for a couple of nagging warrantee issues, but since the next dealer is either Seattle or cross the border into BC I thought I would give them the first crack. Had a EGR sensor that they switched out no problem, and a torn strut boot. They had to order the strut boot and said they would call. 6 weeks later I finally called them, to find it was sitting on their shelf. They did that fine, and also replaced the broken Hand brake cover. I doubt that I would have them do other routine service like Lube/oil/filters, but I will trust them with warantee work.
Now that Harmony Motor Works has their new lift I would certainly have them do the routine service stuff that I don't do (Like brake fluid flush).