Doesn't seem like so at the pay-what-you-want hour
No there is nowhere to store items. It’s a security risk
Not to.my knowledge
No really sure about the size of the suitcase but there is a drop off
Drop off your luggage whenever you want near Solomon R. Guggenheim Museum and enjoy your visit serenely and luggage-free
Check after comments
When I went there with several kids they gave us huge baskets where to put stuff big enough for suitcases.
Thanks! Your answer is awaiting moderation.