Same experience here. One of my 5231s is being used as an overview camera (i.e. it's zoomed all the way out -- it's NOT for face viewing or license plate reading, and it's not wasting any extra space), and to me, my old 3MP 2.8mm HIK camera (also used for the same purpose) is more crisp in the daylight. Not hugely more, but it's still noticeable to me.
I used the
DragonEye Security Camera store on Ali that someone else in the thread found. Their DHL shipping is expensive, but they were easy to order from/communicate with, and you know what -- I finally have the cameras -- so there's that. lol I'd send them an email (via their Ali page) to verify what they have on-hand before you place your order. They seemed to be able to grab stock from Dahua on similar dates as Andy.