This was my first engine model and it was a real pleasure to put together. Some of the screws were a bit tricky but nothing some masking tape and tweezers couldn't handle. Really happy with the results. It sits proudly on my book shelf behind me, displayed on all my work calls. It took an evening but I imagine some more experienced folks would make better time. I had no real complaints. Some of the pieces will have small areas where the paint is missing due to the printed strata. The instructions were only slightly confusing in a few places. Overall, a real winner. I look forward to putting some of the other engines together!