The Haier M90E is an ambitious attempt by the manufacturer to enter the higher segment of the market. "On paper," the specifications look impressive: Mini LED backlighting, VA panel, and a 144 Hz refresh rate suggest a complete piece of equipment. However, reality verifies these assumptions. We receive a device with two faces: a powerful hardware base that suffocates under the weight of poorly developed software. On one hand, we have excellent brightness, high contrast, and deep black levels, which, combined with low input lag and HDMI 2.1 connections, should make this television a hit. On the other hand, everyday usage is marred by annoying errors: a weak dimming algorithm and an unstable Google TV system. It is clear that the manufacturer lacks experience in optimising such a complex device. Who is this model for? Mainly for conscious users who can overlook system errors in exchange for high brightness. However, for the average consumer, the Haier M90E currently poses too great a risk. In this price range, the competition is enormous. We can easily find proven models from other brands that offer similar picture parameters but provide significantly more stable and predictable performance. Instead of experimenting, it is safer to reach for solutions that do not suffer from "growing pains."