In fact, the comfort of soaking in hot springs is related to the quality of hot springs, so all the scenic spots are basically the same, and the difference is limited to the decorative design around the hot springs.
1. Taiyi hot spring is good, with large indoor swimming pools and many outdoor swimming pools. Each pool has its own characteristics, such as roses, coconut milk and Chinese herbal medicine. And there is Taiyi Cave nearby, so you can go and have a look. The disadvantage is that it is a little far from the city, but it is not too far. It takes less than 20 minutes to take a taxi in the city.
If the landlord insists on soaking in the city, Marriott Hot Spring Valley should be good, and it should be the largest hot spring in the city.
2. I wonder if there is a single room. I think there is. Even if not, the small swimming pool outside Taiyi can fully meet your requirements. There's a mandarin duck pond outside Taiyi, which just happens to pick up two people. Maybe LZ wants private space, so LZ had better consult the scenic spot in advance, and the possibility of having a single room is still great.
It seems expensive to stay in a hotel in the city center. It is suggested that the landlord contact the travel agency here or Taobao to book a hot spring package, some of which include hot springs and rooms. You can find it on Taobao.
It seems that I have already answered at 4. 3. If it is cheap, it must be from a travel agency or Taobao. It is suggested that LZ buy a package ticket online and stay in the hot spring resort directly. It's convenient. You don't have to go back and forth as long as you want.
Finally, if you live in Marriott Hot Spring Valley, you might as well climb down the Buried Hill Park after soaking in LZ, overlooking Xianning City. It will snow recently and the scenery is good.
After buying the ticket, except for special services such as fish therapy and massage, there is no charge for the rest. Sauna and fruit in the lounge are free. Moreover, the rest area of Taiyi is particularly large in single person sofa, and every sofa is equipped with a TV, so you can lie down and watch TV. Hehe, I have been in Taiyi rest area, and that's all I know.
I wish LZ a happy stay in Xianning!