Kenji Sato
Google
I've been coming here for about 10 years now but I can say that it's been a disappointment the last few visits.
Although the facilities are well maintained, updated, and cleaned, they seem to not do a good job at limiting the number of guests. Unless you go right at opening time, the Roman-Irish side of the spa will be full and will not give you a relaxing experience. Steam rooms are overcrowded and guests do not respect the quiet zone. Staff will occasionally come around to quiet down people but with minimal effect.
Additionally, the staff at reception will show no form of hospitality and will just scan your reservation QR-code and then hand you the towel set / wrist band with no explanation. As we've been here before, we understood how all of it worked, but we were very perplexed and felt disrespected when the attendant simply did not even exchange a single word with us. In the lockers, there were a few parties having to ask other guests (including my wife as well) to have everything explained to them.
On the plus side, I would say that the spa area in general is nice and clean. The rooftop pool also offers a great view of the city and one of the appeals of this spa.
Overall I would not recommend coming here. It doesn't offer the full experience although you have to pay a premium compared to its competitors.