7/10

Pros:
-excellent combat, best 2D metroid has ever been. Parries are still too big of a factor but flash shift makes fights way more fun
-great movement, aside from the lack of same side walljumping (RIP) samus controls wonderfully
-good boss design
-paced well, little to no filler
-story held back from sakamoto's retardation from the previous metroid games...until the last 20 minutes
-fun to find sequence breaks

cons:
-environments don't stand out, the schizophrenic design of jumping through cold, hot, emmi, and normal zones means no area stands out, there are also two chozo "ruin" areas. It doesn't help that constant teleporters/trams/elevators are thrown into the mix
-railroading, even with sequence breaks in place, it's limited in what you can do because the game has "checks" to make sure you hit certain story beats how it wants you do
-EMMI are a shitty concept, stealth and chase was cute with SA-X when it was a few 15 second encounters but it's obnoxious here by the time you get to the third EMMI, it doesn't help that it's hard to "dread" these things when you just respawn almost at the same place you died
-poor OST, I don't think I need to explain this one
-lack of good new upgrades, the only good one is flash shift. Cloak was largely used for a mechanic that shouldn't have been in the game, spin boost and cross bombs are the definition of filler abilities, spider crawl and storm missiles are slight variations of existing upgrades from the past
-uninspired regular enemy designs