Just picked this set up yesterday, some of the new parts are neat (hubs, wire clips, etc).
Just not sold on the Control+ unit, if it's ok to mention in this thread. On a more technical/programmable front, it seems... closed. Like, if I want to use those motors or hub in a MOC, not sure if that's possible? The hub seems to be controllable with only the app. Would be interesting to see if anyone has got a PC connected to it, like the EV3.
So I'll ever only be able to drive those motors with the app, which seems to be specific to this set and the Liebherr when it's released. Sure, you could build something of your own, but will still show as the 4x4 in the app.
I've been having a play with trying to connect the new motors to power functions (which means sbrick/pfx/buwizz) had a little luck, but you'll lose the tacho sensing stuff (my guess the extra two wires), which I think these motors have.
Anyways, that's a bit off topic, liking the set so far though!