Hi,
I had a VBAC a couple of years back. It was great.
I had a trainee doula with me and she was great. We arrived at the hospital a bit later than I expected and I was already 10 cm dilated. I took awhile to get on the bed but once there, there was nothing left to do but push. They strapped on a monitor as soon as I was on the bed. I had thought I wouldn't want it but I actually found the sound of the heartbeat very reassuring. It's the one thing I was tuned into during all that pushing.
My hospital had a time limit on first and second stages of labour. The first I got around inadvertently by arriving late.
The second target was just hit. I pushed ds out just a few minutes under 1 hr. The midwife was great and did her best to help. The doula and dh were also great. I know I would have done it even if they weren't there - but NOT in time. Which would have meant possibly unnecessary intervention. (Second pregnancy but first labour.)
I was in hospiatl a bit after midnight. Midwife managed to check that yes I was 10cm at 1 (hence the clock starts NOW). Ds pushed out at 2. Up in the ward by 5 and discharged by evening. Would have been ready for discharge in the morning itself, except for some Rh- issues.
Would def recommend a doula.