That's me! I asked almost the exact same question a couple of months back. We were lining up a drive from southern California to Florida and I thought it could be a fun way to go.
Longest story shortest, I only have a single night in it. It's not the fault of HH, I'm just not setup for cold (~30-degrees at night) boondocking. The cold laughed at my single battery and destroyed it with our usual nighttime usage.
The negatives of this actual location/my experience:
I also spent more at the winery than I would have liked for a "free" night of camping. I think it was $43 once I paid for 2 wine tastings, a bottle of wine, and a small tip for the server. And, this location was extremely off of the highway- like 30 miles. Very pretty miles, but it added to our drive time (which the point of this leg of the drive was to just "make miles").
The good of this location:
The staff was very friendly. Even with me having 2 kids (ages 3 and 12) in the winery with me. In fact, the lady joked with my 3 year old and included him in the discussions. Huge win there. The location was gorgeous and it was extremely quiet (30 miles out into the countryside of Arizona).
I would have done a second night, but my battery was just beaten senseless from the first one. I didn't think of the temperature shortening the battery's usable life quite so much.