Its been now 4 years... i am at a total loss on why you would not get this done... we need to import, and it works up to the point of assigning relationships even without the add on. Please, how do we use wpallimport to assign a relationship?
I agree with OldGreg 100%, even for the Crockoblock JetEngine there is now for little money the "JetEngine Importer Pro Pack" for "WP All Import" So you can even import repeaters and relationship fields.
You guys from metabox are sleeping the time. SORRY that I have to say that.
Because of this issue, I'll be switching to ACF too and start informing in the forums, circles and groups I belong about this lack on interest and communication in a seemingly important issue... With this passivity, I think everyone should think twice about an LTD with Metabox...
Guys @metabox, wake up!
We're very sorry for this problem. It's not because we don't want to do that. It's beyond our technical capability. We tried several times in the past to make the integration. However, it ended up with a same conclusion that we couldn't make it without modifying WPAI's code, which we're not familiar with.
So, we asked the WPAI team for help and they agreed to do the integration for Meta Box. That's the best thing we can inform you at the moment.