With my oldest I had noticeable transition. Lots of rectal pressure, got very hot, a little shaky.
With DD, I showed up to the FSBC 10 cm dilated and totally effaced, membranes still intact. I never had a really noticeable transition with her. Looking back, my discomfort in the car was probably transition, but at the time, it didn't seem like the type of transition I had w/ my oldest. It was more a feeling of wow, these are finally getting kinda intense and I'm not sure I could do hours and hours of this. BUt once I was out of the car, I wasn't even 100% sure I was in full active labor (and I was 10 cm when I got there). Never had a really out of control feeling or anything. Oh, and I did hang out for about an hour or more waiting to feel "pushy" because I had no urge to push at all at 10 cm and full dilation. Glad I just hung out and waited.
With my 3rd, a homebirth, things definitely built in intensity. I did request an icepack when I was getting a bit hot but I was also in the birth pool at that point so it was warm. Felt a little grunty leading up to full dilation (never had a check other than when midwife arrived, but I'm guessing that's what was going on). Never felt like I had a really pronounced transition. Grunty for a bit leading up to the birth (my first clue we were getting close...I could just tell), then 2 big pushes and he was out.
Transition was my least fav part, but it was only really intense with my oldest.