I had a rest at the Ambiente SPA Hotel in 2018 - I liked it. I especially liked the water complex:
despite the fact that the pool is small 10 x 4, but it has a waterfall, counterflow, hydromassage jets, convenient descent into the water. There is a Jacuzzi, sauna, Turkish bath, rain shower in the complex, and it is good that you can stay in the complex indefinitely, except for the sanitary hour. The room was a two-room apartment with a balcony on the 4th floor. The rooms in the hotel are all different - my room had a corner bathtub, but there are rooms with a small shower cabin and this is a minus for people with a large complexion, and when booking a room, pay attention to this.
I liked the work of massage therapists, nurses, and a good kitchen. Gas injections are performed at the hotel, along with other procedures. The "Floating" procedure is carried out in the "Ambient" - I know only two hotels in Karlovy Vary where there is such a Floating bath: the neighboring hotel "President" and "Ambient".The hotel offers Thai massage, but the procedure is paid. There is a bar on the ground floor, there is a small library, a computer in the cafe - there were no problems with the Internet.
In general, the hotel deserves its 4 stars.