Finally flashed this today after debating going back to stock for a few weeks. I'm very pleased with it, it's been rock solid since the first boot. Only about 24 hours in so not a huge sample size but everything has worked exactly as expected.
I do have a few remarks though. I wish it came preinstalled with SuperSU, I fortunately had read through the thread to see that suggested. I'd be worried someone may not have and is freely giving root permissions unknowingly.
Also, what's the best method to uninstall some of the T-Mobile bloat? I've used ROM Cleaner to remove some Sense bloat but it's not carrier specific. I disabled most everything, but my OCD wants it complete gone. I'd also like to uninstall Chrome and Gmail since I use Dolphin and the stock mail app.
Lastly, how to remove the T-Mobile boot and power off animation? I'd forgotten how annoying the boot animation and sound were while on a custom ROM. I'm probably using the wrong terms, but when I search I find stuff specific to different devices and carriers. I don't want to go deleting system folders unless I know it's safe on a T-Mobile M8.