We visited specifically to the Bonsai garden, which has a well deserved reputation as being one of the best around. It is unbelievable! The structure and appearance of the trees is like nothing I have ever seen.
The rest of the gardens are very nice. Not overly large, but a nice size to fully explore in 1-2 hours. We had a very nice time, and would go back if we are in the area. The $6 price was well worth it!