Did you do it, or is that from what you read?
I did it
I have the Verizon Z10.
I first installed the 10.0.10.XXXX, then 10.1.0.1429, then the 10.1.0.1483, an now currently running 10.1.0.1627
This last .1627 us for sure the most stable, and a lot of noticeable upgrades. Only issue I currently have is my Microsoft Exchange account isn't working. I happen to think its an issue becasue I installed a leak that actually wasn't even meant for my Verizon Blackberry. A big upgrade in this leak is that Whatsapp is fully integrated in the Hub
Installing leaks is very easy, all you have to do is backup your Blackberry with Blackberry Link.
Then to install the link its an autoloader file, Just have your Blackberry plugged into your computer and open the autoloader file, it will install the leak without you having to do anything else.
After its installed and your phone is set up, then you could restore with the backup you created. (Note that you could downgrade, but you cant restore a backup from a newer OS on an older one)
The whole process takes 15-30 minutes depending on the file size of your backup/restore. (if you have loads of pix and videos saved on your phone it could take a lot loader)
Also sideloaed apps dont get backed up, so you will have to re-sideload them
