The ultimate bad decision. "Rather than nail individual tacks along the chair, lets just use one of those strips and pop it in place"...let's not. Not only does it look low budget, it is a safety hazard when it pops up, and exposes that sharp edge.
A proper nailhead installation. Tight and clean. Here the nailheads are actually serving a purpose in the construction of the piece. In the first photo, they are merely just applied to...wherever.