Yes, and I believe OnePlus is one of the few manufacturers that is fairly welcoming to open source and third-party ROMs (which makes sense since their original

Yes, and I believe OnePlus is one of the few manufacturers that is fairly welcoming to open source and third-party ROMs (which makes sense since their original phone was based on Cyanogenmod). My current phone, the Sony Xperia XA2, is similarly very stable, even with microG, because Sony provides open device configurations for most (all?) of their phones. But almost all of my past phones (mostly Motorola and HTC) have had various stability issues that didn't exist on the built-in ROMs. It's still worth it for me, but I would definitely not recommend it to anyone that isn't willing to roll the dice and potentially put up with some pain.