You meant Roger Cicala, the owner of Lens Rental. I do not test lenses nor review them. I have read that my Nikon 12-24 f4 AF-S is sharper at 24mm but to my eyes it is sharp all around.
I cannot offer further comments because I have no experience testing wide angles. They seem to be sharp (those I have used) but also they are prone to flare and distortions.