Great experience at the Museum of Jewish Heritage.
Visited on a Thursday later afternoon. Thursday is their late day, open until 8pm, and admission is free during their after-hours period. During normal hours, adult admission is $18 and children 12 and under are free.
There was no wait to enter at that time. You will pass through a TSA-style safety area where your bags are put through a scanner. Not as thorough as TSA, thankfully. You will then proceed to the ticket area where you can purchase tickets or scan your pre-purchased tickets. You will get an admission sticker.
They do NOT allow certain items in the museum area, including backpacks, large bags and strollers. These items can be checked for free at the bag/coat check area near the admission counter.
You can then proceed to the main area. The museum is fairly linear and you can complete it by following that path.
Lots of interesting information about the holocaust, including the period leading up to and the period that followed it. Great exhibits throughout with lots to see. Aside from the holocaust, the museum addresses other instances of historical persecution of the Jewish people as well as providing a good overall understanding of the Jewish culture.
There is a cafe on the second floor.
On the main floor, there is a gift shop with lots of lovely trinkets for purchase. Be sure to check it out before leaving.
All staff I encountered during my visit were great: very friendly and helpful.
Parking is tough in the area as expected. There are a few blocks of street parking in the immediate Battery Park City neighborhood...but these spaces are far and few. There are some garages in the area but they can be expensive.
There are a bunch of subway stations within the 5-8 block range including access to the 1, R, W, 4 and 5 trains.