So, my set came in today.
If you're unclear of what it is, check Sariel's preliminary vid here:
So far I built the cat, and I'm very impressed by the solidity of the system. The programming interface is simple but powerful, and communicates everything clearly without words. The commands are simplified for the official builds, so instead of manually programming
[rotate motor B clockwise for one second, then anticlockwise for one second, repeat 4 times]
you get a command block that says
[cat wags tail]
Of course, once you get into working with your own models, there's an option of dealing with motor speed, direction, rotation sensors and everything directly.
First impressions:
The models are well thought out, and due to smart color selection parts are easy to find, yet have a coherent colorscheme. Parts selection is superb, design of the app is pleasant and clear.
Only 6 penlites, and no way to power models with an external powersource? That's going to take either a whole lot of batteries, or buying some rechargeables.
Powering the unit off to save on batteries means holding the power button for 10+ seconds, and even then it can be unclear wether the unit is really off.
The electronics provided should bring ample functionality. (internal tilt sensor, external light/distance sensor, two internal motors and one external motor).
So, if you have any questions, I might be able to answer them.