Should I choose chamfered or unchamfered strips?

Strips with chamfered edges can make a floor look very attractive.

Two-strip packs are not chamfered, as this would emphasise the gaps between strips.

For the same reasons, where flooring is made of panels glued end to end, they are chamfered only along their long sides.

Engineered wide single plank random lengths is chamfered on all four sides.