Can't say about the pro series in particular, no direct experience. My experience with Blichmann is generally positive, but mixed. My homebrew club has built out and maintains a brewhouse and we use Blichmann burners at our four brew stations, which are awesome. We also have a Tower of Power that senior members can reserve and use and when its working right, its great, but it often seems to be in need of one repair after another. Of course, we're using it more often than a typical homebrewer.
I don't have a full setup from them, just a bunch of different things (some really great, some had minor issues initially), but when it came to customer service they have never disappointed me - happy customer after all.