Got these to replace 100 year old chairs.  I knew that we would not find chairs anywhere close to matching a 100 year old table and since our child has autism and "rocks" a lot, wood chairs were just not going to hold up.  The black metal matches some of the black iron accents (country-ish) we have in the room which is why I chose them.  I felt the vinyl seat would be more comfortable and easier to clean vs. upholstered.  The backs of the chairs are a good height and comfortable.  

Pros: Good value, easy to assemble, attractive
Cons: Corners at top of the chair are a little sharp