None of those fancy racks are as good a bike rack as the Sheffield Stand.
SS stands shoudl be made of smooth stainless steel. The ones at my workplace are nasty seam-welded galvanized steel with a horrible rough surface.

The only problem with sheffield stands is the number of ways you can install them incorrectly:

To close together so you cant fit 2 bikes and one rider in the space.
Alonside a a pole or wall , so the outside parking space is not usable.
Butting up against a wall so you cant have a wheel extending outside the rack area.
Too high so small bikes dont fit so well.
In a poor position: obstructing natural pedestrian routes or fire escapes.
Placed at right angles to path instead of en-echelon where space is limitted.
Placed as far from front door as possible.
Placed where trucks reverse.