I started to, but didn't get very far. I might pick it up again at some point - it's definitely interesting how different it is from what I'm used to, and it seems to actually be a bit closer to how I naturally think in some, but not all, ways. (In fact, it's close enough that I should probably rethink my claim that I don't think in language - I certainly don't think in English, but how I think isn't all that much farther from English than Lojban is.)