OK so I have played beta both closed and open and would like to share some thoughts on it. I will not go into detailed post because it would take ages to list every singe thing but just to keep it to minimum.
Graphics, spells, models, world looks great. Every spell I seen is nailed, environment looks great, lightning, swaying trees, waves in the ocean in act 2, wind in desert, pieces of falling ceiling in tombs and so on looks just top. The game is a feast to the eyes no question about that and I have full confidence in later acts as well. Atmosphere is preserved and enhanced I would dare to say. VV truly understood the soul of the game and just for that this game is worth buying.
Technical elements on the other hand needs a bit of work. A lot of bugs reported during gameplay, lobby, stash, chat, trade and list goes on. Not a gamebreaking bugs by all means but they are there and needs urgent attention to improve gaming experience. My question is how significant those bugs are for improvement, we cannot forget that we have a layer of remaster on top of the legacy layer and how much of a work is needed to get those bugs fixed, if they can be fixed at all.
Personally I believe 2-4 months delay would be definetly reasonable and accepted. It can be released as it is in September but I would expect further development to nail those technical issues with support for at least another year to make sure we got 100% nailed product in all departments.
I rate the beta 8/10
We nearly there Blizz, just a bit of extra effort, nail those technical issues and this will be solid 10