When it actually got going (I had a horrendously long latent phase this time - 27 hours of contractions and only 2 1/2 cm dilated!), it was really quick. From admission to baby in my arms, 2 hours - admitted at 5cm, 8cm within half an hour, fully dilated not long after! Was not aware of any scar pain whatsoever, it was completely normal.
Meant to be a waterbirth, but pool wasn't cleaned, and when it was, I was already pushing and couldn't have moved for all the tea in china. Still on a total high at our accomplishment - never even had any stitches. 2 small grazes and that was it!
She is a complete little doll. So in love, as are DH and DS.
Good luck everyone planning for a vbac. It was absolutely the right choice for me, and I hope it is for you, too.