Good. As usual anyone who works hard and has good grades tends to do better than those who never study...having said that - an education is no guarantee of success! Plumbers make a lot of money!
Exactly the same prospects as someone who has just left school with only 2 gcse's A-C in Maths and Science. A-levels are just for people who want to go to university.
Actually that's a bit too harsh. A-levels open opportunities in the RAF for officer entry or in the Police.
Apart from this though it's back to square one.
I know this because I'm in a similar position myself.