Thanks to everyone for replying. It is a big decision and I want to make sure that I am doing it for the right reasons. It is encouraging to hear from people who have made the step from old versions to new and to hear their thoughts about it. I am in my 50s now and so I guess this will probably be my last chance to make a really big bike purchase. I know that there is a certain amount of 'lockdown' fever (we are in our second national lockdown now) influencing my decision - it is good to have positive things to focus on - and exercise is one thing that we are still allowed (and encouraged) to do. I will have to sleep on it!