Tosei Hotel Cocone Kamakura is a beautiful hotel.
My bedroom was large - even larger than it looked in the photos, and extremely comfortable. It had anything one needs, including plenty of storage space. The pajama was nice and comfortable, and there was bottled water in the room.
I would have been very happy spending a few days there, but my stay in Kamakura was only one night, unfortunately.
The Ofuro isn't bad, but it was very crowded when I went, so I didn't enjoy that. I didn't have breakfast at the hotel, but they offer a free evening light meal and there are a variety of drinks available to the guests for free, which was rather wonderful.
The staff was welcoming and helpful.
I would go back in a heartbeat and I certainly recommend this hotel.