MrsMuddyPuddles - I think they were happy. The lady who hosted the dinner party was quite relieved because she said they were filming for about 4 hours, and they'd all had quite a lot of wine by the end, so she'd been worried about what they were going to say!! Amanda's house has been discussed in lots of detail in the school playground - but mostly in a 'wow, what a fab house' sort of way. I think both of them had researched the production company before they agreed to go ahead, and neither felt that it had misrepresented them at all.
If you want a fantastic book about class, then Kate Fox's Watching the English is fascinating. (She was in the programme about TW).
Class, in my opinion, is not about money at all, so footballers may have lots of money, but they won't suddenly become middle or upper class just because of their income levels. At my school, there was one (fabulously wealthy) child whose parents were 'in showbusiness'. She didn't have the 'right' accent, and parents were a bit dismissive of the family as being 'not quite our sort, dear'. I'm not sure it would be acknowledged in quite the same way nowadays, but there is definitely a distinction between old and new money, and as Kate Fox said in the programme, there are SO many nuances and judgements that we make about where people 'fit', without even realising that we are doing it, and from a very young age.