Honestly folks, reading this thread I would say many people judge a car purely on its name, rather than how it goes, value for money, fitness for purpose, reliability, etc. I have owned or had many cars with different badges over the years, including a Vauxhall, Wolseley, Ford, several Mitsubishi, numerous Toyotas and 8 Holdens. I can assure you that the name on the badge does not affect the vehicle characteristics.
I currently have a 2018 build ZB LT turbo petrol 4 that I have had since new. I wasn't actually in the market for one but was offered a deal I couldn't refuse. There are 75.000km on the clock. 100% reliable, and I do use it for towing. There are no rear diff issues to worry about, and the car does exactly what it says on the box. Service is no problem and parts seem readily available new and used. The car has only just gone out of production in Europe, and the manufacturer is now part of Stellantis. While Holden is dead and gone, Stellantis is not. As far as I am aware the engine is still being manufactured in the US. The turbo is a Mitsubishi unit - a standard product line I imagine. The gearbox is a standard GM unit, still in production as far as I am aware. Here in NZ, virtually all new car parts come from overseas, so the ZB does not differ from your average BMW, Audi, Kia, Nissan, Toyota or Ford as far as parts sourcing. I am planning to keep this car for quite some time as I like it.
Yes, some folks have issues with theirs, as happens with every make and model of car. It is always a lottery, no matter what. Sure, there are better cars than the ZB out there, and just as many that are not as good. But, as a value proposition, the ZB turbo 4 is not a bad bet.
So, I would suggest do your homework on the history of the car you are looking at and buy it if you like it. Ignore those who judge a vehicle only by its badge.