I cannot compare them but did own a Canon 50mm f1.4 (black and chrome) for several years. I liked it very much and felt it to be a very "clean" and vice free f1.4 which had quite modern rendering although perhaps more low contrast than modern lenses. As with other Canon lenses of the 1950's era, from memory it did not focus all that closely - which might be a disadvantage in some situations but undoubtedly this contributed to its good image quality. I did sell it in the end, not because of any sense of dissatisfaction with it, but rather because I already had a Canon 50mm f1.8 and several f2 50mm lenses and needed money to fund the purchase of an M8 camera body. This was something of a compromise in that I was no longer shooting film all that much. If I kept the lens and declined to buy the M8, I would not use the lens as much as I should. But if I sold this lens to help buy an M8, I would shoot rangefinders much more but would no longer own the lens. Kind of a horns of a dilemma situation and I came down on the side of selling it to fund the purchase. If I owned it still I would certainly be using it quite happily.
I think you will most likely be happy with this lens which seems to have few quirks.
