Hello Matty,
On a purely PERSONAL level:
If you want a nice car, nice house, and cheap holidays then yes you should do it...
However, if you cant cope with not having a social life with anybody outside of work, feeling tired all the time, and working when everybody else is off enjoying themselves (eg bank holidays, chritsmas etc), feeling totally undervalued in your job...
then stick to the 9 to 5!!!!