A very detailed and high-quality model—don’t get me wrong. But it was a little frustrating at times to assemble all the tiny parts due to the amount of glue used. The screws were also unconventional, but a T5 bit did the job fine. Instructions could have also been a bit more specific. After some fiddling (a lot), the endless loop was complete! Overall, it wasn't as smooth as I wanted, but a good challenge nevertheless.