One Apple Macbook Pro Retina owner mentioned in their reviews that it was sealed.
One Apple Macbook Pro Retina reviewer who reviewed the product considered that it was reliable. Senior User wrote in their review of the Apple Macbook Pro Retina on Amazon “Also all the reviews said that Apple was very reliable for years”.
One customer who reviewed it thought it was well made. Shadi Fayad mentioned “From the keyboard, speakers to the display quality, they are all built to Steve Job's OCD standards, really top notch, Ive owned 7 laptops” in their review of this laptop.