Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
Overall quality is good. Speakers have various mode and sound system is not bad. Screen quality is FHD and looks FHD. Compared to Xiaomi model of a similar price, resolution is lower but still ok. Value for money.