How does the Yamaha MT-15 V1's VVA technology impact real-world riding?

The Variable Valve Actuation (VVA) technology in the Yamaha MT-15 V1 has been a significant talking point among motorcycle enthusiasts. This system, designed to optimize performance across the rev range, promises improved low-end torque without sacrificing top-end power. However, there's ongoing debate about how noticeable and effective this technology is in everyday riding scenarios. Some riders claim they can feel a distinct difference in power delivery, while others argue that the impact is minimal in real-world conditions. The discussion often extends to how VVA affects fuel efficiency, engine longevity, and overall riding experience compared to non-VVA engines in the same class. This question aims to explore riders' personal experiences with the MT-15's VVA system, focusing on its impact on city riding, highway cruising, and spirited cornering. It also touches on whether the VVA technology justifies any potential added complexity or cost in the bike's design.