Is reso at Cafe at Kunsthistoriches Necessary?

I’ve always found a table with no problem, but what is the harm in making a reservation?

I was there the first week of December a few years ago - there was a gigantic line waiting to enter the cafe early afternoon. If it's possible, make a reservation.

I settled for a Leberkase at the Christmas market outside - it was quite good.

You can easily look at the cafe for free. I’m with the poster above - I’d eat at the Christmas market.

You can easily look at the cafe for free.

As I recall, there is a mezzanine level above the cafe where you can look down and appreciate the symmetry of the intricate designs of the floor.

A reservation is always a good idea, preventing you from waiting in a line.
As there are no reservations for lunch time accepted, best is to make a reservation for the latest morning time slot (11:45am) and start having lunch at noon.

I reach out to the cafe and ask how far in advance they take reservations.
Thanks guys!

There is no reason to call. If you go to the website of the cafe, you can make an online reservation up until Dec. 21.

https://reserve.molzait.com/?restaurantIds=khmcafe-66f6f520000e47c894

Booking page: https://www.genussimmuseum.at/en/
Click on "Book Now", and after having entered the number of people select "Café à la carte" at 11:45 for lunch.

And to clarify the link I provided is where wmt1's link takes you when you click on book now. In other words, both are correct.

Thanks again guys!
Great info!
We booked a 6p dinner.
One of us speaks German, so might take tour included with dinner price afterwards.
Not not great at walking around after a dinner with wine,so probably go mid afternoon to see the museum first.