Best bet is to ask your local suppliers that carries that particular brand. They will tell you if, it is a good product or not. They will have feed back from contractor's that purchase from therm.

If, it is a online product. Becareful of fake reviews on the product.

Well regarded true local lumber yards will have red oak unfinished flooring and most often good quality.

Thank for the direction. I ended up getting 5.25" wide select red oak they had on special from a mill up north in Petoskey Michigan, Northern Michigan Hardwoods. I just got it yesterday the boards I pulled out looked the milling looked really good.