Had been there before in 2009 but was taking my elderly mother on a trip to the area (my father died in June and I was getting her out of the house for a few days).... hadn't planned to stop there but got to Charlottesville sooner than expected and once I told her about it she wanted to see it, so we went.
Guide was very knowledgeable and took her time since it was late in the day. Went into lots more detail about the house, furnishings, the Monroes, etc. Especially appreciated the guide allowing me to carry through the whole house the folding chair they keep for people who can't stand long since mom needed to use it. Mom was shocked at the amount of actual Monroe items in the house and how well maintained it was.
Grounds were beautiful and well-kept. Mom said more than once she would love to spend all day in the garden.
I liked the place the first time I went there. Mom had been wanting to go to Monticello for years but I think she actually like Ash Lawn-Highland more.
The only real thing that I didn't like was having to wait 10-15 minutes to start tour because they were waiting for couple to come from the visitor's center and wanted to get them on our tour...... then the couple didn't realize we were waiting and were looking around the gardens in front of the house.
Well worth the visit. If you are in the area and have a couple of hours free, make the effort to go!