Zero missing parts, quality of pieces just as good as the name brand , very clear easy to read instructions, all power functions work as intended. Easy to set up the remote control. I’m going to purchase more BioBricks products after this good experience!

My 11 year old is more technically minded I purchased this to spend time putting this together with her. She is always asking can we build some more. Also incorporates learning about how differential gears and other things work. Currently we are still putting it together.

Quality of parts excellent. Build technique is more intricate, interesting, and challenging than Lego models. This model is the same size as the Lego Claas Xerion, yet packs 8 motors and two battery packs. Packaging is well done. Highly recommend.

This BioBricks crawler was a blast to put together. The pieces fit perfectly, the instructions were clear, and the finished product actually works well. It moves like a real crawler and has tons of little working parts. Great gift for any LEGO or engineering fan.

This is I believe my fifth set from BioBricks. Their sets rival what you would expect direct from LEGO but not as costly. VERY detailed builds, great instructions, super fun to spend time with your kiddo building (and they can keep playing with it when they are done). Great fun!!

The quality of this product surpasses the much more expensive competitor. Instructions were clear, my son loved putting it together. Looks just like Legos and is compatible with his other kits. Great value, works as advertised and lots of fun.