This was a fun build. The construction wrapped around 3 motors and a hub. Your sticker application skill had better be top notch as there are a ton of stickers to apply but they final product is work it. For anyone that hasn't built a technic power build be aware it doesn't handle like a regular RF toy. It's slow and controls are slow to respond which is fine though better for a construction vehicle type motorization.
This Lego set is awesome, and I like driving this Audi car with my phone. Very fun to play with. And I like how the wheels are big so it can go over stuff and nice suspension. One of my favorite Lego set of all times.
I have a few different categories of Lego I collect and build. Cars are one of them. I bought this Lego not realizing that it was a battery operated remote control Lego, only intending to build it and display it. The build was enjoyable, with very clear instructions and for a change, I didn't make many mistakes in the build (Technic builds intimidate me). I am not a very fast builder and being a hobbyist, it took about 4 sessions to complete the build. It was a bonus to realize when I opened the box that this was a motorized Lego. Overall, a very enjoyable build. For me personally, no playability as I am a collector and will display the vehicle in my office.
The Audi build is great, with an an instructional manual that is spot on. I usually find myself making some small mistakes during a build and later correcting them, but I did not run into that issue. After the set is built, it is very easy to download and utilize the Control+ app. It is a cute app that offers control via touch-screen input, but it does not give you the option to change the on-screen controls or connect a wireless bluetooth controller. Both of those features would be nice to have in future versions of the Control+ app. Fortunately, one can download a fan-made app known as Brickcontroller 2, which allows you to connect a wireless bluetooth controller, allowing more precise control. The Audi does not move very fast, as expected for a motorized Lego Technic set, but the car is well-built with nice suspension, and can handle some decent obstacles. I was actually surprised at how large the car was after building it, which is great since that means it has greater clearance when traversing terrain. Overall, a fun experience, and the Audi looks great.