The selection is amazing! Every color and form you can imagine is out there and the rows are well maintained and labeled. We only bought 3 this year, but I have limited space. It would be extremely easy to blow an entire year's gardening budget there. This tall, bright orange daylily tempted me greatly but was out of my price range.
If you're in New York between the end of June and mid-August, give Melanie a call. She's usually open to the public on weekends, but it's best to call ahead. It is definitely a unique and wonderful place!