I love how these floor turned out for the price but they were a lot of work. To give you an idea of my process. I sorted boards for any major flaws, nailed down, applied a wood putty (Woodwise Powdered Wood Filler) to the entire floor to fill in gaps, Sanded, Stained (Duraseal Quickseal Chestnut), and Sealed (Satin Bona HD)
I purchased about 1800sq ft of flooring. It arrived in unboxed strapped groups that were not even on a pallet. There was some damage due to shipping but not too bad. In the end, I used about 85-90% of all the boards. I only scrapped boards where the tongue or groove side was damaged (board was under 4" width in some places.). Things like knot holes I just filled with the putty.
I would highly recommend the putty that used. It is formulated to look like white oak and it takes stain really well.