I dunno, there's a lot of problems with the upgrade systems. I dunno if I like it, feels weird.
For example every legendary you get is arguably useless before like 270 light...you will have to upgrade it many times, at the cost of scarce marks. That's just weird.
Best probably to not open any legendaries if you can before like 280 light. It's wasted resources if you plan on keeping it.
Quest system too....I'm already bored with half of them, I read there is 125 quests in TTK? Why is there a 2-step quest to run a new strike? In the old days it was called...running a new strike.
I just scan reddit to learn which quests have the rewards I want (Marks, or weapons in some way) and only do them up to those steps. Just the reward of "experience" marked on most quests is useless. Moreso now that upgrading guns is pretty useless. I haven't even see a single "extended mag" type perk yet, does it still exist? This would be one of the only weapon perks worth caring about...They have nerfed perks to a often trivially specific/weak level, next will be "gun fires faster when running backwards in the cosmodrome being chased by three or more Vandals within 10 meters" or something.
Speaking of mags, Bungie's unmitigated war on magazine sizes has reached a zenith. I currently have a scout rifle with a TEN mag. Something like a pulse with a 30 shot mag (which is still really just ten) is like a cornucopia compared to other guns. Had a hand cannon with 5 mag. Most Rocket Launchers I've had so far have 4 rockets total mag+reserve. 4! You pick up one rocket per heavy pack. About the highest I think scouts go anymore is 17, they used to be 27! I see normal auto rifles with a whopping 26 and dont even blink. Shotguns and Fusions that have 4 in the mag also seems the new normal. Bungie clearly wants you to spend most of your time reloading. And it takes stuff like hand cannons and machine guns about an hour and a half to reload, I think they slowed that down too.
Loot system is basically designed to be idiot proof, you WILL advance (rapidly) whether you like it or not. In about two days I'm already 274 light and that goes up inexorably every few minutes I play.
Also it's funny how the system notices your weakest link and gives you that. Oh my Ghost is low light and dragging me down? One of my next few drops is almost certainly a really awesome new Ghost...
I dont know, the flip side to all these is it reduces any happy feeling like you got lucky...any individual loot drop so far is rendered pretty meaningless as the progression system is just autopilot. But we'll see how endgame ends up feeling, that'll clearly be a different beast.
Taken are annoying as crap to fight...random shields so you cant really prep (arc for fallen, fire for hive, void for vex, before, and you cant prep anyway because you basically need to keep whatever is highest light on, regardless) and are usually fighting against a ironclad shield of a different element, so you might as well be using a pea shooter against harder shielded content, and it comes in waves of course. Teleports, titan bubbles, hard to see, ugly blah graphics, it's like they took everything annoying and put it into one enemy type that happens to be the one the expansion is built around.
All that negativity aside, as said it's still Destiny and still fun.