Yeh I would def go to them, however do some vw dealers offer revo? Would it be better to go this route to keep the warranty?
....I don't know about "better" but I would think that your warranty is potentially 'safer'. The plus side about going to someone you trust like JKM is the service and involvement you get. Would the VW dealers just farm it out? Would they use a rolling road? Or would it be just a generic install without all the pre and post checks? - I don't know the answers to these questions.
If you've missed me saying so before, Revo usually receive VW's ECU updates very shortly after the dealers do, so Revo are usually 'up to speed'. In fact last time, JKM updated my ECU with the latest VW update
before my VW dealer did!