Over the past couple of years, Walthers has been improving the way the stuctures fit together and I have to say that on most of the buildings I have bought recently, they have been the easyist things to put together. I think that it is a combination of skill obtained by building over the past 3 years and Walthers just simply making it easyer for us.
My first building was the Blue Star Ready Mix Concrete plant. It is made by Walthers. The assembly was a little difficult, but that was because I was new to the hobby and had never done something like this in my life.
I think that nomatter what company go buy from, it is always going to be a little challenging at first, but with a little time and paitents, it will get easyer for you.