I had an issue with some software I bought (Toontrack EZd 2) from Sweetwater once..
I emailed my "sales engineer" (odd use of the word "engineer", in my book), and he replied within the hour.
He told me that one of the guys from Toontrack was coming to the building that day, and he would have a word with him. He did. He emailed back to say that he'd spoken to him, and then emailed the next day to see if I had had any luck.
He then emailed again to ask if I had got it sorted.
Pretty good Customer Service, I thought. Possibly the best that I have ever come across on t'interweb.