Lightweight online sibling of Tinderbox: miro.com

Anyone experienced with miro.com? If so: What do you think?

There is a clear advantage in Miro (and Mural and the like) in that multiple people can map things at once.

But I see them as very different tools from Tinderbox. These days I’m spending most of my collaborative white boarding between Jamboard and Mural, depending on how tech-savvy the collaborator is, but I find the entire range of tools offered in this space to be terribly lacking.