I gave birth to my DD in Derriford, 1 July 2006, so not long ago now.
They were wonderful.
I had wanted a home birth, but alas could not happen as LO was not growing so well inside. My widwife was fantastic (what area of plym?) and supprted me all the way with hosp appts etc.
When I went into labour, they were reassuring, supportive and calming on the telephone until I went in to hosp, and they were responsive to my needs and wishes all the way through. A loverly midwife called Charlotte led the delivery, and was amazing. Calm and supportive, I was not left alone at key points, only during quiet intervals when DP and best friend was there anyway, and never for very long.
I needed an op afterwards, and the anaesthestist team were great, I needed to stay in the Transitional Care Ward for a week afterwards, and ALL the midwives were brilliant.
I breastfeed my LO and the help and support I got whilst learning was great and actually think it was better that I stayed in for the time I did as I was a pro by the time I left!
I loved my experience of childbirth (sad eh?), and the staff at Derriford helped enormously. I even had tea and toast at one point about 2 hours before LO was born!
As for the birthing pool when you first call them to say you are in labour. If it is free you will be reserved it unless it is needed by someone urgently. Even if you dont want the birthing pool itself, the delivery room is bigger and a bit more homely than the other rooms I think.
Good luck