Ran a GR 70 with my WhirlyBarb last night, finally. Most of his equipment isn't Ancient yet, so I'm thinking he could probably go a bit higher once I get a few upgrades in place.
The other night in Asia, my Lady Necromancer was running Bounties and generally minding her own business, and a green arch and portal suddenly appeared and said she was worthy to enter. She'd just completed the Trag'Ouls set (via Haedrig's Gifts) so this was a nice surprise. I hadn't even planned on running the set dungeon, hadn't bothered with the clue or anything, but I gave it a shot and completed it on the second try.