If you have an interest in ras pi - especially for tech info interesting to a programmer - you'll probably enjoy the stuff that Jeff Geerling puts out. He has youtube videos and tries out things that software engineers are likely interested in. Love his stuff.
PCIe does fix the main complaint most people have with Raspberry Pis: the lack of reliable storage. While USB is perfectly fine for spinning rust, it's not quite ideal for SSDs, and we all have an SD card failure story or two.
It's interesting that the PCIe lane can be driven at PCIe 3.0 speeds. That goes a long way to helping to make up for the fact that it's just one lane. Having used various PCIe cards on a RockPro64, it's nice to see more options.
I'm a little surprised that UEFI isn't available at launch, but here's to hoping that won't take too long.
Good stuff, and I'm happy to see the progress. I just wish the company hadn't gone off the deep end.