Only the system to put the phone is not thick enough to keep it in its most reclined position in landscape to portrait and vice versa. Putting the phone in portrait, two inclinations can be the first almost 90 ° holds pretty well, the second does not at all due to the rounded edge of the guard and certainly for lack of padding in the strilles. In landscape mode it is the opposite to the first support 90 but does not take hold in the second.
But nothing too bad, because the two positions agree quite well (for me)
So I put 4 stars for the quality of the product and I pull on a support system.