I had Aggie at 9 weeks. In retrospect, it was perfect timing.
She's a little over 3 months now, appx 12 weeks. She's starting to recognize people (me

) and bonding to her surroundings. Yes, it was a lot of work in the beginning, especially the first week at home. However, she didn't think about the "home" she had before (that was our concern because it happened before when we dog-sat our friends' dogs).
I think if I had gotten her now, instead of three weeks ago, it'd be harder. She'd probably miss her "mom - breeder" and cry more.
Bottom line, if you're concerned, hesitating about taking your pup at 8wks, you SHOULD ask your breeder to hold her/him back for at least another week.