Yes, she's downsizing. My brother and I flew the nest years ago, but my dad unfortunately passed away this year (hence why I came home) so she wants to find somewhere smaller and more manageable, back where she used to live in Norfolk! We're in Esher (Surrey) at the moment and it's getting increasingly busy there.
So far we've had about 30+ viewings, we started off having at least 3 a week, it died down a bit at the end of October but we've had another 3 this week and a developer come and view.
Feedback has been mixed - people really like the house, it's on a very desirable estate and is on a large plot with potential to extend, but some don't like the slightly sloping garden. Developers don't want to buy at the moment because the market is uncertain due to Brexit 
We've got a couple of people who have been hanging around for a while - one has just sold his house, after months of telling us he'd offer straight away, his girlfriend has now decided she's bored of the whole thing and wants to go on holiday instead. The other has found tenants for his existing home, but hasn't put another offer in.
My mum is ringing our estate agent this morning and telling him if she doesn't get an offer in the next few days she's going to take it off the market until next year. It would be a shame really as she's found a lovely house that she adores, but can't do anything about it yet!