I have a phase 2 (2023 build) Excite 51 (I'm in Australia) and I'm one of the perhaps many people who lurk the forums without posting much because I don't have any issues to report. I'm just here to see what's happening in the world of software updates and for Rolfe's road trips.
I've had mine for about a year now, and really have nothing to report. I get in the car and drive it. Then don't think about it too much in between times. That's what you're supposed to do with a car right?
I've never had a warranty issue, only been to the dealer once for the complementary 1,000km check up. No issues with lane keep assist or AEB, I don't preflight the car I just hop in and drive and for the most part the car has melded into my life like any other appliance. In fact if I didn't hang out on these forums I'd probably assume everyone's experience was like mine.
My previous car was a Toyota Corolla and they have a reputation for reliability, so I was a little nervous changing particularly as I have a young family and the thought of being stranded out somewhere with the kids doesn't appeal, but I've really had no issues.
These sorts of forums will self select for people who have issues, because who's going to bother joining a forum and posting about a car that just gets them from A to B as they go about their lives? so you need to be mindful of the lens through which you view the MG4 world when reading the threads in here. Maybe also the phase 2 cars were more reliable than the original phase 1s (which we didn't get in Australia).
Overall I'm very happy, it's the best driving car I've ever owned, and I've had fun cars in the past, Toyota MR2, VTEC Honda CRX and a Toyota Corolla(ok maybe not that last one)