My group quite liked it a few years ago. When I introduced them to "D&D" (read: TTRPG) I started them with Beyond the Wall and F-AGE. Turns were very slow, because adding 3 dice and checking for Stunt requires being a rocket scientist, if you'd believe my players
My main problem with AGE is the HP bloat and the lack of enemies. I can create my own, sure, but since their are built the same way the PC are (meaning 8 stats + focus and tiered talents), its quite the endeavor. I once converted the enemies from Sunless Citadel to FAGE and it took a whole day. Plus, having the Talents without any description in the monster statblock (for the few enemies in the book) is pretty unhelpful; just write the effects of the Talents in the statblock!
Also, you rapidly reach the ''auto-hit most creature'' status, since DEF is pretty hard to increase. After lvl 3-4 you often roll not to see if you hit, but how well you hit and generate Stunt. Which I dont mind that much, but I wonder if there's a way to to reduce the reduce the number of roll required. Like, when you auto-hit, just roll the Stunt Die, no need to roll the whole 3d6.
Since Dragon AGE is back in print for the release of Veilguard (I wonder if GR will get back the license to do something with it?), I gave my book to a friend of mine whose a newly converted fanatic of DA lore. So maybe she'll GM a game for us.