Hi Daniel, thanks for the new 5.1 build. I believe it's the first CM12.1 based rom released for grouper/tilapia...Congrats!
Thank you for your work on getting this done so quickly.
I haven't really tested very much, I'm on EST and I'm about to get some sleep.
The one thing I initially came across is wifi/settings/advanced force closes.
Also, just for further info, I tried dirty flashing this over RR v 5.3.8 while also flashing Banks latest 5.1 gapps and I got multiple force closes of Google apps, like Gmail and Youtube. A clean flash solved the problem. I also noticed that on initial setup, it takes a fairly long time to process the google connection. It almost looks like it's going to hang. I think this is just something new with CM12.1, as I experienced the same behavior on another device with a CM12.1 based rom. Although in that instance, I had to skip initial setup and let it boot into the OS before setting up wifi and google account.
Thank again for the build, I'll be re-setting it up and testing it out over the next little while.