To each their own. As I drive a stick by choice I'm probably less impressed than most by the desire to automate simple functions that can easily and cheaply be done mechanically, particularly since I buy for the long term, which includes the need to allow for the cost of repair/replacement.
Any piece of equipment not on the car will never require either, so it has to provide a large improvement in capability vs. the simple, cheap, reliable version to be worth it. Auto-dimming mirrors and wiper and other controls on touchscreens used while driving fail that test - they are at best unnecessary gimmicks, at worst dangerous. Seeing as how Tesla also puts fart noises on the touchscreen, calling this and similar distractions unnecessary gimmicks seems charitable.
When you say it's inexpensive, how much did it cost, and what will it cost to repair or replace when it eventually fails? Or do you not keep cars long enough for that to be an issue?
My current car came with an auto-dimming mirror, along with an electronic compass and its display integrated into the mirror frame. It was part of a trim package, so I don't know what it cost; if I could have ordered the items separately I would have skipped it. I had the dealer swap it out for a manual mirror (no charge). Not because I wasn't willing to put up with the auto-dimming, although it was a needless complication, but because the mirror frame extended about 1/2"-3/4" lower with the compass display/mirror sensor than the manual mirror. It blocked my view to the right front, especially when the car was nose down such as exiting a driveway, forcing me to bob and weave like Cassius Clay before he changed his name to Muhammad Ali, just to see around it.
Aside from being unsafe it would have been a constant irritation to deal with it for what's now been 17.5 years, and I've never regretted the swap. The compass at least provided some extra capability that might have been useful once or twice, but it wasn't worth putting up with the reduced safety/extra hassle.
Guy [I have lots of experience designing/selling off-grid AE systems, some using EVs but don't own one. Local trips are by foot, bike and/or rapid transit].
The 'best' is the enemy of 'good enough'. Copper shot, not Silver bullets.