The handles were installed quickly, no problem. About the look I'm no thoughts are just not the original manufacturer of the window, but even if I am two feet away, I would not say our white windows, it stands out for not having the original.
What bothers me about some handles, is that the disc / cover for rotating (to complete the grip in one of the two positions) is sometimes a bit stiff. Or that the keys are partially slightly heavier reinzustecken. Probably this is but done with a little oil or silicone spray.
Finally, it should be said that there are no such handles whose "castle" is for concluding expresses pure, but you have the key in the lock through 180 ° to unlock or lock.