Thought I'd give an update, now that I've had the Berg in the bag for a while.
I've definitely gone through the full cycle of reactions to a new disc over the past 5 months. Everything from "this disc is magic, how have I lived without it" to "not sure I need it, maybe I should pull it out of the bag". I've settled on keeping it as a valuable tool in the bag, but I play better when I rely on more traditional/floaty putters and have the Berg available when a low glide/stable shot that doesn't go far is absolutely needed. I'm probably throwing it 3-4 times per round now, rather than 8-9 times.