Somebody here must have had a collection of Brauns.
How much better is a series 7 to a 3?
Why?
I have had the series 3, 7 (745) and now have the 9 (9095CC). The 9 is the better by far and closest to a razor. A couple of clean passes results in a smooth shave for me, but larger stubbles require a few more passes.
The series 3 was the worst, and left itchy irritation.
No messing with cream/gel/foam (although you can if you want), no messing about with blades, no time wasted. Just shave wherever and plonk it on the clean and renew station once every few days.
I buy the solution packs once every 6 months or so, a pack of 3 tanks cost a little more than £10. The cutting unit needs to be replaced once a year, depending on model, can cost up to £40.