Yeah I feel similarly; though the core gameplay is largely more of the same, after a nearly 20 year hiatus in which nothing else was quite like it, just having "more Metroid Prime" feels great.

I actually kinda like that they didn't chase modern trends by making it more twitchy or action-heavy, instead retaining the slow burn exploration that makes the series so compelling.

The ice belt is a real high point in the entire franchise. Just excellent in every way. This game feels like another case of critics seriously underrating a game. I hated myles at the start but the npcs have grown on me and are missing for very large portions of the game. The game has its faults, as all games do, but they feel pretty minor overall.

Didn't get to take the bike offroad yet as I am still working my way through Volt Forge, but from driving it between towers it does feel good to control and not clunky or annoying.

The DNA of Alien, which has been central to the series since day 1, is very strong with this game; a lot of the Lamorn's architecture and machinery feels right of HR Geiger's iconic designs in the 1979 film. (Right down to the vagina doors)

Also, it's a little thing, but the implementation of HD Rumble is brilliant.

While I know some are disappointed with the game or might even dislike it, I am happy Metroid fans got their game after over 8 years and 18 years after Prime 3.
I've barely tried a few old Metroid games. I wanna start with Prime Remastered one day and might skip straight to 4 after that as 2 and 3 don't have difficulty settings and I feel like anything more than Casual in Metroid would eat me alive.