I'll carefully read reviews for several days on several products before purchasing just about anything. After narrowing down, I was prepared to assemble this cool Mongoose since deemed easy. I did a pick up order. To my surprise, a young lady wheeled it out fully assembled :) My little one was so excited. It looks amazing. Quality is awesome. No complaints from us! He loves the handle/foot brake options and colors. 4 y/o, 1/4 of a foot away from being 4' tall. Glad I got this size and not one up, it'd be too heavy. It's a really good idea to have your littles sit or stand by sizes to be sure. We walked by and were ‘just looking at cool bike designs' (needed to see 16” vs 18” vs 20”). Surprised him soon after :)