Well, 5 weeks 1 day and I have my car back

The judder on idle has gone, it picks up smoothly and seems to be a better drive but it's only had 30 miles put on it and I'd imagine the battery has been disconnected for a fair while so the ECU will still be adapting.
When I first started it there was a slight hesitation in picking up revs but it didn't stutter like it used to. The head tech told me this is what he'd seen on a similar Ed30 that they serviced and said he didn't think it was anything to worry about. I'm going to stick some Forte in it and give it a good run. I'm not completely convinced to be honest but I can't argue that it's as bad as it was prior to taking it in. I guess all I can do is run it for a few days and see how I get on.
I'm still annoyed that a car supplied with a warranty has cost me money - VW have agreed to cover 70% of costs but I still have to find the other 30%. I think the supplying dealer should cover this