what I appreciate about weave is that it solved the cross host container networking problem easily (it's very very easy to use) and now, i.e. no waiting for promises of future solutions or fooling around with more complicated set ups.

Here's where I got burned: I set up an elastic search cluster using containers and weave and life was great, but it then grew to need another node. Upon setting up the new host with docker and weave it turns out the new node couldn't talk to the old nodes because they were using different versions of the weave protocol. That was disappointing and a pain, I stopped experimenting with weave at that point.