I've got 20 plus years service under my belt. I wouldn't recommend it to anyone :(
As pps have said, it is soul destroying to be placed in impossible circumstances over and over again. You can never do a good job, you can never feel you've given good care, there's never an easy shift or a lighter day.
The sheer numbers and acuity now mean you work under huge pressure every single minute you're at work.
It's a physically demanding job with barely any breaks, long hours and a disorganised shift system (no rolling rota or structure just random days/nights/weekends).
There are no comforts or perks for staff ie I don't qualify for any transport or parking permits at my Trust, so have to pay extortionate sums to try to park in an on site or city centre car park, or add hours to my 13 hour shift using public transport that may or may not run at the unsocial times I need it, or park somewhere dodgy and walk back to my car at 2 am in the dark, alone and unaccompanied.
I'm on band 5 despite my skills and experience because there's no progression available for the vast majority of the workforce.
I experience aggression and anger from patients, relatives (and colleagues) every shift I work. I am shouted at, or grabbed, or spat at, threatened, every single day I go to work.
There's very little respect or social capital in being a nurse. People assume you're a wannabe doctor or not very academic..
I could go on and on and on..