DH I are headed for New York City at the end of April. We are considering the City Passes. We would

DH I are headed for New York City at the end of April. We are considering the City Passes. We would use it for: American Museum of Natural History, Metropolitan Museum of Art, MoMA, Top of the Rock OR Guggenheim Museum. Currently, the website states that the Statue of Liberty/Ellis Island the Circle Line Cruise are closed.
Suggested donations are just that: Suggested. Some here will argue that you must donate the full amount to support the arts, some say give a quarter. You can do whatever you like including a middle ground such as $5 or $10 or whatever you like. Personally, I say give directly to the museum (whetever car rental glasgow airport amount) rather than to the pass operators who must be taking a cut somewhere (and are obviously getting you in at a less than suggested amount rate anyway).No one at any museum will look at you funny if you give less than $25 per person.
From what I understand, the only time you really save time with the pass is if you are going to the Empire State Building. At the museums (whihc I go to regularly) the only time the lines are a real factor are the free hours at each museum (MoMA on Friday evenings, Guggenheim on Saturday evening) or with a major show such as last year's Alexander McQueen. Otherwise, admission lines are a few minutes.
In most cases and for most people you will not save unless you are hitting three museums in a day, something I can't really recommend. If you can get a deep discount and can get it for 7 days for the price of 3, then it's not a good deal, especially considering that two of the most expensive things on the pass are not available right now. But by all means get it if you want. I just don't think it's a very good deal in NYC, though it is in other cities.