Last time I tried it, it was ios only and the projects it suggested were pretty simple. I found that just building something was more enjoyable every time.
Same here. I've paid for the quite expensive (relative to mobile apps market) one-off license only to discover it has a very high error ratio (sees blocks that aren't there) and extremely simple projects to build (in the range of 10-30 blocks total). I wouldn't recommend it to anyone barring the free use for simplest of builds.
It's a neat idea though