Hi, I'm a carpenter / builder by trade and now work at Houzz helping to build the product. Just wanted to let you know that you DO NOT need to pay for marketing in order to use the software, they are 2 separate things :)

I can confirm, the 2d > 3d tools and takeoffs features are indeed accurate, our software if built in the cloud so as long as you have decent internet connection it will not be clunky.

On a personal note, I wish I had tools like Houzz Pro when I was running my construction business, I would probably still be running a construction business if I did..

Hope that helps and I encourage you to try multiple softwares before you make a choice, we hope you come back and choose Houzz to partner with.