Construction is about the same as the 4x4 in terms of structure and design. Construction was easy, just consumed some time. The assembly video was very nice. Much more detailed than when we built the 4x4. This Samson I built almost all by myself in two evenings.
I am happy with the software. Is much the same as the old with the exception of the setup section. I have written down all my settings from the old machine and now I am in the process of adding those settings to the new software. So far so good.
We built the bottom in for a down draft system. The piping for that is not yet complete. I will post some images of how it was enclosed as soon as I remember to take my camera with me to the shop.

Overall we are very happy with the Samson 510.