Not really. It is badly broken. Wonder over to the beta backer forum and take a look. Most backers can't even finish the segment due to save bugs, disappearing quests, disappearing items, buggy skills, buggy level ups. That's if you manage to get into the game itself, past crashes to desktop.
It is badly broken. But that's completely to be expected and can absolutely be fixed.
At the core of the game is an amazing heart. One that I think will make PoE a great success. But it's going to be a rocky road to get there.
If you're not going in with your eyes open about the state of beta, you're going to be badly disappointed.
As I said, I didn't buy beta access to "have fun". I did it to try and help Obsidian produce a great game.