One common misconception is that engineered floors are not real wood, however that is far from the truth. Engineered floors are still wood floors, however the manufacturer uses multiple layers of different wood veneers. The sub layers can be of the same species or it can be different. Engineered floors are stable and sturdy because the grain of each layer runs in different directions. This essentially means that the wood will expand and contract less than solid wood floorings.
This is an excellent choice that can be installed above or below grade. Being a natural hardwood, you will need to use special products when cleaning or wiping.