In the positives, I appreciate the compatibility with Lego Technic, which is the main reason I bought it. It is also positive that the remote control is in 2.4GHz, so you avoid interference, etc.

It lacks a bit in terms of construction quality, but at least it is at an acceptable level! In the negatives, I mention the rechargeable NiCd batteries that are not AA or AAA (maybe they are C - but I'm not sure). This means that when they run out (which probably won't take long), I will have to come up with some solution with lithium or NiMH batteries...