Highly interesting, if you like modern art. So check which temporary exhibitions are shown prior to booking. With my voucher everything was ok, just change at information desk for a valid ticket and avoid waiting at cash desk.
Took my 13 year old to a few museums to introduce her to art and this was her favorite. The building itself is a work of art: beautiful, inspirational and a key reason why the Guggenheim is a wonderful place. There are no confusing rooms, no getting lost and you don't feel overwhelmed at all. This allows you to focus on the art itself and it is incredible. A very special treasure.
Skip the line access rules! BUT, there is only one floor of classical artwork and the other SIX! 6 are Chinese modernism. IT would be better with a little more focus on regular art and not so much emphasis on Chinese modernism. Maybe 3 floors Chinese and 4 full time is more appropriate. Had I know this, I would have skipped the interior altogether, as the Frank Lloyd Wright building itself, is a sight to behold. VERY DISAPPOINTING and not at all what I expected. Will DEFINITELY check what is to be exhibited for future art museum pursuits.