We got it for funsies and went through the final Spanish test. We’re both fluent speakers, he’s native. We were unable to pass the final tests–not because we didn’t speak Spanish, but because it was actually a subjective interpretation of what was being said rather than an objective one, btu they treated it like it were objective. Basically you have to learn it THEIR way. As a linguist, this is a big no-no and I walked away.
That’s going to be a lot more work since comments and posts are decentralized here. You can probably easily get some of it but it will be hard to get all of it.