We’re labeling this support “experimental” because we don’t
yet consider it production-ready, but everything’s in place
for you to start porting your apps to Python 3. Our next
release, Django 1.6, will support Python 3 without
reservations.
I haven't tested it and I might be being unfair but I have a feeling that Django's experimental non-production-ready release may be comparable to other web framework's normal production releases in terms of stability.
Although obviously plug ins and other components would also need to be compatible too.
Don't take my word for it, I'm guessing based on my impression of Django. You know some projects you want to avoid the .0 release and others are pretty safe at the beta release. I just have the feeling that Django is at the safe end. I don't have any data to back it up at this point though.
Go on