But mmWave can't go through anything can it?
They are a bit vague in the blurb butI belieive it's incapable of going through walls, windows and even leaves.
Combined with being short distance only, it means you'll need to be in a public park near an antenna or you'll need to be in a building with line of sight and an antenna connected to a box inside giving you traditional wifi, to get anything like the fastest speeds
Yes it will probably be good eventually when they've got the infrastructure in place (just like 4G is really good already when they have the infrastucture- which they often haven't.). But otherwise it's just going to just default to 4G but called 5G.