I've had the Fold 3 for almost 2 months now. I don't use it as my main phone as there are a couple of minor drawbacks. Because it's relatively thick while folded, I don't have a case on it and its slippery. Thus I tend to baby it; I carry it around in a sunglass case. It's heavy and also not easy to use when unfolded. The camera's are just ok, at best, so I use one of my other phones for pictures.
With that said, the main screen is great for watching video and I also use the S-Pen a lot for notes and sketching. It's also good for internet browsing, reading and a full-screen Instagram experience. The crease, while definitely apparent, isn't really a distraction. I only paid $1050 (
from swappa) so I'm not really mad at the purchase. If I had to spend ~$1900+, I'd be disappointed. My other phones are a Galaxy S10+ and iPhone 11 Pro, both from 2019. If I'm using those more than this nearly 6-month-old, ~$2000 phone, there's still plenty of work to do.
I can't comment on battery-life since my time is divided between devices.
Phone does get a lot of attention out in public.
My main takeaway: Decent purchase at less than 1200. Too many compromises at 1800+