A couple of houses back, I used three coats of Gym Seal (directions called for 1 coat for normal traffic, 2 coats for heavy traffic, and 3 coats for commercial applications) on new Oak. Lived there about 10 years after the build and the only area that showed any signs of wear at all was in front of the rear sliding doors leading to a deck and earth. We kept no rug there since it also doubled as a landing for a circular stair case. In time, small scratches began to appear where dirt would reside. But for the rest of the Oak throughout the house, it was flawless. Would I use it again? Yes, in a heartbeat!
As the name implies, it is (or was?) a commercial product. Don't remember the price, but remember thinking it was expensive at the time - 80's - early 90's.