The hardware is good & you can get phones under 6".
They have 2 big flaws: price & years of continued support. The catch 22 is you can get a good price on them after the support window (2 years, but looks like 5 will be going forward). Luckily LineageOS always picks up after the support window if willing to take on possible firmware vulnerabilities knowing software will continue to be updated—but the camera requires the proprietary apps/libs or it looks low-end.