It's a good quality shower door that fits perfectly as long as you take measurements. It fit exactly as described into the opening of my shower. The hinges are designed such that you can adjust the door and the panel such that they meet and leveled with imperfect walls, i.e. slightly slanted. That was my main concern - my walls are all over the place and I was worried that it won't be leveled.
Installation is very hard physically - and requires at least 2 people, one of them needs to know what they are doing. So if you are not construction professional - hire someone to help you.
One of the panels that I have received had a small imperfection on it (some sort of small pain splatter may be?) but it's not worth to take a star off, as it's a beautifully made quality product.
I had this door installed for a year or so and it's serving me great, no discoloration in the metal or the glass, everything is in tact and holding up great.