There are quite a few threads in this forum about exactly that issue. Click on 'search' and look for 'PS7' or something similar. Lots of opinions for and agin, but probably more 'yeas' than 'nays' in the end. For the record, I stuck with PS6. Tried out 7 and it's OK but certainly not worth the 'full upgrade' palaver or the money. I'll get 8 when it comes, which should be within a few months so it might be worth your while waiting too.