Actually as someone who works in automotive, I can say with confidence that the quality levels and customer satisfaction at Jaguar is at an all time high since the Ford take over.
The last Jaguar I would ever consider owning, is the 1987 XJ-6. My father for the longest time ran only Jaguars, and Land Rovers or Land Crusiers on the land. When the XJ40 came out, he had to reconsider, because the car was truly a disgrace. He had it sent back and replaced with a Daimler Double Six, which still used the XJ-6 Series-3 platform. Since the Series-3 the quality of the design, interior, and feel of the cars has fallen into a terminal decline, and Ford's use of a bastard V8 in the cars rather than the correct I6 or V12 is a sign that the foxes have eaten everything inside the henhouse and abandoned it. Yes, Forduars may break down less than Jaguars did, but is that any consolation when the cars have become appliances rather than the masterworks they were under Sir William Lyons? If customers are indeed more highly satisfied now it is only because the customers are lesser individuals than the sorts who once patronised the marque; people who used to buy Jaguars now buy Audis or BMW's. The only marque more defiled by its new corporate master than Jaguar has been Saab. The 1985 XJ-6 Series-3 Vanden Plas I ran as an undergraduate in the USA was, thirst aside, the perfect saloon. I remember it fondly. Peace.