"We bought these at the start of the UK lockdown for our dinosaur mad 5 year old and to please the archaeologist in me. Build time was estimated as he took an hour here and there over the last few months to put them together. The full set really is something to behold! He loves it! The addition of the minifigures is a nice little touch. As a play experience, sure he can’t play with them afterwards but he really likes having them up in his room. Instructions are easy to follow although little hands came in quite handy when putting it together, I found some bits tricky to secure (my only use when it comes to building), but then he’s a better builder than I am anyway! Would absolutely recommend this set, even if you have a younger builder, as long as you are happy with them having the smaller pieces and you both have some patience!"