I had a waterbirth with DS 11 years ago today! He died when he was 4 but it's nice to remember how positive his birth was.
His older sister's birth was a bit of a nightmare - struggled to get into established labour so it went on for days, was tired when it came to pushing and having avoided an epidural or section then had a retained placenta and ended up in theatre.
DS was so different! I'd said I'd like to try the pool for pain relief. Waters broke about midnight and got to hospital about 2am They weren't convinced waters were broken so wanted to send DH home and me to ward for observation which I hated the idea of. Then I stood up and proved my waters had indeed broken!!
Found a side room for DH and me and used TENS for 2-3 hours with contractions getting stronger. Eventually around 6.15am contractions felt very strong and was checked and found to be 5cm. They said we'll take you up to delivery ward and you wanted to try water - 'there might not be time to fill the bath.' Given it has taken me DAYS to dilate with DD thought they were talking nonsense!
Anyway got into the pool about 6.45 am and DS born at 7.16 after what I remember as barely any pushing. Used some gas and air too. All I can remember is the nagging to keep my bum underwater.
DS was very calm after the birth and snoozed and breastfed whilst I got stitched up. We left hospital by 12 and that was dawdling...
It was very positive for me but whether some of that was because things were so much more straightforward than the first time and I understood more what was happening don't know.
Good luck with everything whatever you decide.