Ipswich vw are quite small, i have used them, and still wodd if they were competitvely priced. I have found they quote max price, then you have to show them vw website prices and they match it. Recently asked for cambelt water pump change and they would'nt move on it, so i took it to vw chelmsford and saved £45.
Like you say, i was'nt impressed with the staff behind the parts/service desks, they all looked bored, dis-interested. But they are'nt the technicians, so for £45 i gave chelmsford a go and they did a good job. The service desk guy was training a new person up, and i got a good customer experience.
Not that all inchcape know what they are doing. I won't be going back to Colchester after they diagnosed a £1200 deisel pump on my MK4 after having it 4days, when it needed a £89 new egr valve diagnosed by colchester fuel injection. Even when i drove it away they said the egr was'nt the problem, but it was!!