Review on ROKR Assembly Mechanical Christmas Valentines: Perfect DIY Gift to Celebrate the Festive Season! by Steve Yang

Overall this is a very good product with some interesting twists. PROS: 1) In general, all the parts fit together and the holes line up correctly 2) The device works perfectly once assembled and set up 3) I really liked the design and functionality of this device 4) Great COVID-19 project for indoor entertainment. CONS: 1) There are many very small parts and assembly can be tedious at times, especially the tiny G1 insertion pins and orange rings 2) The instruction manual needs to be bigger and clearer in some places (I used YouTube videos when I had them). manual issues 3) I think 5 hours build time is too optimistic, especially for a first build. 4) Some parts, especially some ramps, will not fit snugly and may break if you try to force them into place. Have some glue ready. 5) When the device is filled with parts, your dexterity will be put to the test. In particular the ramps and the placement of the main components after assembly.