Upgrading to 2.8 experience?

Anyone having any issues upgrading to 2.8 from 2.7.x?

I'm not on site anymore with my Moodle installs and while I can do the upgrades remotely, just wondering if I need to take any special care or be prepared to have to go onsite to fix any issues.

Totally understand that every situation is unique, and that backups are important, however, just curious how smooth the upgrades, (via git?) have gone for everyone!

Thanks.

Ken