thank you guys!

Hi,
I'm currently looking to apply for a PhD, but I'm not sure how to go about it. I've started looking for possible supervisors, but most PhD's starting next october won't be advertised til january.
But the thing is I've started to have second thoughts (or I'm just confused) based on whats been posted on the forum. It seems most people don't enjoy it, but there must have been some good times.
I do plan on speaking to some PhD students in my department, but I was wondering if you could tell me some of the good things about doing a PhD?
All your advice would be greatly appreciated!

how long is your thesis?