Some thoughts from a (not total) beginners perspective.
I played the alpha, so I already knew about a lot of things and techniques, and only had to adjust it to the beta. For me, the beginning went rather fast, i would have liked (and maybe someone who doesn't know the alpha even more) to spend more time on the easy dungeon. Maybe that you have to beat it with some class/race combinations to learn about them. I heard there are more tutorials planned, but somehow I never liked the tutorials in DD, it felt much better to learn while playing or through solving the puzzles or beating the challenges, which are a very good addition.
This way, you could learn more basic stuff before things are getting more complicated with gods and preps and so on.
One thing that felt a little bit different compared to the alpha is the attitude towards dying or retiring from a dungeon. When I started playing the alpha, I was expecting (from what I've read about it) to die a lot and it took some time before I even beat the first dungeon. Later on, I was still relying on a certain dungeon layout or glyph to spawn to make a succesful run and I had to restart a lot. It maybe because I already know the game now, but somehow in the beta it feels like you should win a run if you start one. I don't know if that makes sense...
Anyway, thanks for the great game and for the discussions in this forum!