"I originally purchased this as I wanted to have a new Mindstorms set. My first set was the RTX series. I would say that the big things that are keeping me from giving this a good rating is lack of expansion parts and hidden features. I know from my electronics knowledge that the light sensor can detect ambient light (though there is no option to do so). I also feel that I should decide when to turn on/off the external LED's of the color sensor also "no option". A "internal" sensor block for reading battery life/voltage not available... A block to use the force sensor used in the Spike prime set not found. In the end it is the features I know it has that are blocked or just simply not added that frustrate me the most. It's fun, but it could be a lot better with just some simple adds.
+ rechargeable battery + smaller hub + large part count + variable creation + large sound library
- hidden features - no expansion parts - fixed cables - long charge time"
"I really enjoyed the circle wheel build, was a nice addition to build knowledge. Was a error in the instructions on my build but nothing major. It was my first static Star Wars droid build, closest to this for me would be the Wall-E robot that I motorized. Found this set for a very good sale and gave it a go. I ended up using him to decorate my computer..."