Well, it's another Pi.
It's faster, they pretty much rectified all of the previous shortcomings of the past models, most notably the absolutely crippling front side bus bottleneck (making older versions very... Impractical to say the most). Interface throughput rates make sense now, resources are up, and critical features have been added.
The HDMI is good. I had trouble due to a bad cable. I am some kind of electronics wizard, with a very serious and well stocked workshop that takes up 1/2 floor of my home, and I only had one micro HDMI cable that ended up being shot. Without a secondary video option (maybe you can pipe a composite out of the board somewhere, I don't know, if you can it's none percent obvious) I had to wait for a cable order to get it going. This is sort of a con... But basic preparedness will avoid this becoming an issue.
I ordered one (4gB model) for projects etc, and one (2gb) for my new netcore miniserver, which operates a pihole DNS and a few other very small functions. However, now with gigabit Ethernet and an actually useful serial his interface, I plan on using it for a good bit more. I will be using an 18650 batt hat on the 4gB model, possibly interchangeably with a 7" screen. If I can figure a way out to use both concurrently, I definitely will.
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