I don't know, I like it.
It's a little odd that they made it for tablets only, but it took me less than a minute to get it up and running on my phone (which is no slouch, but isn't a new model). I wasn't prepared for it to be separate from the game, but I actually like it that way because I like device integration. Also, my friend who plays Forza but not Gran Turismo downloaded it to his tablet and has already imported tracks he's made to my account. It's making him a lot more interested in GT6 because he can play the tracks he made.
As for features, yes I would like to be able to change elevation and yes I would like to be able to make the track cross over itself. But it's really fine...I just use Eifel and there's plenty of elevation change to be had. The trackside elements are pretty lackluster, but as long as the track itself is good I think I'll survive. What's wrong with a track that looks like a country road? That's what the Nurburgring is and we all love that.
At any rate, the Track Path Editor's introduction got me playing GT6 again, so that's a successful new feature in my book.
