Being an oaf, I had some issues with this kit, but really VERY few.
I will say, you will want a knife to just trim some of the smaller / more fragile parts to fit into their tabs.
I also used some superglue and activator here and there. 90% of the parts fit spot on, but some you start to get compound errors (the river not being in the right spot means a wall section won't fit right, a slight trim and its in).
Did really enjoy the kit tho. Good instructions. Pretty easy to follow. Once or twice I did think "... that bit? I did that like .... 4 hours ago".
A great model kit ... thing.