The good - great tooling in this kit - welds marks, bolt heads, etc. were great and very concise. Instructions were fine. Not a complicated build. Kit assembled easy enough I ended up having a slight gap where the upper and lower hills meet at the front end though. Most likely a building error as everything else was flawless except - the tracks. Amusing Hobby relies on the individual links to ne held together with molded in little nubs which serve as pins and they tend to wear off rather quickly or not hold at all which leads to the entire length of tracks eventually being glued in place. A frustrating endeavor. Otherwise a quick, nice build.