The place is great for relaxation. A lot of green soothing the eye. Beautiful landscape. Nice koi pond and small waterfalls. Very clean. Even has some flowers around. Pigeons are friendly. Plenty of fish around.
On the negative side, it doesn't take long to see everything since the garden is a little small. However, I'm from NYC and used to vast size of Central Park, so disclaimer there. It was open from 10am to 4pm, which I think is not fair to those who wants to take photos in great light of early morning or late afternoon.