The lack of a maintenance cover is in the flat construction and the relatively low weight also common and is not rated by me negatively, only the memory seems unattainable for the layman, this should with 8GB or 16GB sufficient in dual channel. The input keyboard like it very much personally and has a decent pressure point. The trackpad, however, is modest, but with such a laptop I always use a cordless mouse. The wireless card served its purpose, but is unable by more than one wall is a good connection to maintain.
However, I would like to address the negative things that force me to a 3-star review anyway. Missing features (eg DustDefender) and a bad display (not with High Brightness) pull down the rating. If you look at how hard it is to find out which components Acer in which model (on Amazon, the 15-inch model is applied for example with DustDefender and bright display, what utter nonsense is) installed, I prefer it from another star.
Conclusion and Summary: Anyone looking for a gaming notebook, should the 791er (17 inches) access number, here a much better display and a different wireless card are all features (like DustDefender) installed. Those looking for an inexpensive multimedia notebook should be more to the 571er (15 inches) access number, here are obtained while the poorer components (display, features, ...) of the 591er series, but at a reasonable price.