I just played it through, I recommend everyone to just a vid of it and skip about 95% of to spare yourself some time.
Its nothing more than the filter&movement you saw on blizzcon and 16"maps"(4x cath, 4x HoA, 4x CorvusPassage, 4x A2Caves) with their monsters.
Its not D1 remade in D3, or anything like that
nothing but d3 trying to look like d1