Absolutely wonderful! I have arthritis pain and fatigue everyday. I spent a blissful painfree hour yesterday in the tank and can’t wait to go again next month. Such a calm, therapeutic experience. If, like me, you are in permanent pain – you really must give this a try. Not claustrophobic in any way and I slept like a baby last night. The staff are lovely too! Cannot recommend it too highly – give it a go, you’ll be hooked!