Yes, I'm using app.adaptbuilder.io I've got a couple of questions in at the Mothership, they have told me I will hear back soon.
I was unsure if app.adaptbuilder.io is public yet and out of it's closed trial, and if there was a forum for this in particular so I've offered to run it for a while if they wanted. I wondered if this was it: https://community.adaptlearning.org/enrol/index.php?id=5
Importing: yes, you are right I think, I can't find an import link in io. A bit surprised at this.
$44. Hmm. I had looked for costs online, but finally sent away a request for some figures. It will be interesting to hear back. Like you I wondered if Adaptbuilder is too limiting (I will know once I hear back from someone) and I also have considered learning the framework.
It is a fascinating world we live in at the moment!!
I'll call you on Skype tomorrow.