Cons:
Still no true to lore females (just 3 male bodies though they got voice options at least)
Still 99% of customizations are locked behind paywall and we don't have "many" options for day 1 yet we were told this beta has all Day 1 Content.
Still no selector for game modes.
No loadouts.
Shotgun is pretty terrible vs every other Halo but can still get kills with it.

Pros:
Needler is on point.
Ai's are pretty decent. Go team Circ.

Summery:
Pretty terrible in those aspects.
Game play if you can ignore the customization, failure to be able to select game mode, failure of many people to play objective (for they want the lovely challenges due to how terrible the XP system is), then the mechanics are "ok". 5 was superior to this one mechanic wise funnily.

Edit:2022
No female bodies still, no game mode selection for the most part you can select maybe 3 out of 7 modes, rest are locked behind "quick match".? No new maps, only 1 new game mode to date and 1 temp game mode as well. Paywall is still there on cosmetics. Still negative review till we get firefight, infected/flood, female bodies (not just males) and game mode selection for ALL modes just like MCC has. They are finally adding forge at least. Only took them multiple months to decide they should add forge which should have imo been day 1.

Trucks in space!

Already on NG+4 and i can say it has some pretty interesting bugs. Only one that really annoyed me was on NG+3 where new atlantis kept crashing every 3mins weirdly but never happened on any other NG+. Everything else is pretty good. Fast loading between maps, pretty decent ship builder, and interesting outpost building. The outpost building IS lacking though in that you can't make the same type of shared pool of resources that F4 allowed between settlements which really needs to be a thing here. Not sure why it was intentionally not added. The slight differences between each NG is a cool concept.