Tulou Hostel Chengqilou Hotel,Gaobei Tulou Cluster, Yongding County 364100

Yes, I know it. I went there for visiting. I think the condition is well, clean and comfortable. There is no private WC in the rooms, but has a public WC on each floor.
I did not live there, but I heard the highest price is no more than 100 RMB per night. For booking, I heard you can book when you reach there, so booking in advance.
If you want to book, you may try to contact bookingtravelchinaguide for help. I always use it to book hotels during my traveling. I suggest you to have a try.