[somewhereoutth]

Depends how it is executed.

I consider my neighbourhood in Western Europe a great modernist success:

Blocks are mostly around 7 floors high, with access organized vertically - each floor landing has typically 3 apartments around the lift/stairwell, so no 'streets in the sky'.

Plenty of shops (and entrances!) at ground level of each block.

Lots of parks, schools, trams, etc interspersed amongst the blocks.

Private balconies for all.