As above. Bellawood is from Lumber Liquidators. They typically use Aluminum Oxide in their finishes because it reduces complaints about scratches in the finish. Aluminum Oxide is SUPER TOUGH to cut through. It can take 2-3 TIMES the effort (and materials) for the professional to cut through the finish. If you can find someone who will 'try' (most will say "Thanks but no thanks" because they have lost SOOOO much money to aluminum oxide finishes in the past), then you will be paying an up-charge of $2-$3 per square foot.

Brazilian Cherry is Jatoba. It is an exotic hardwood. These exotics are SUPER DENSE. They are very, very, very hard. That means your professional will burn through pads and will take 2-3 times the amount of time to deal with these floors. Again, you will be looking at an upcharge of $2-$3 per square foot.

And at the end of the day, after spending AAAAAALL that money, you still have Brazilian Cherry that turns DARK ORANGE/FLAME RED in sunlight/daylight/overhead lighting. The colour (if anything) you put down today will be different in 6 months.

A traditional refinish = $5/sf. With all of the above, I would think you are looking at $9/sf which may not include stain (bleaching out Jatoba is like trying to turn jet black hair to a lovely golden blonde...without ruining the hair).

Bellawood is cheap. It is MUCH cheaper to pay someone $2/sf to rip this out and then pay them $3/sf to install a different Bellawood product (which you can purchase for as little as $2.99/sf).