It's good enough if you don't have any familiarity with any characters but even when I know a few characters only in passing from their classic stuff some things feel wrong
- Clark referring to Lois as his best friend feels very wrong even though I don't mind Superman Wonder Woman pairing
- Dick Grayson being so close in age to the League generations feels very wrong.
Even though there's still 10 years difference between them, Bruce is drawn so young they look like brothers and Dick is portrayed to be so close and loyal to Bruce even though he's only known him for 5 years made me wonder where all these feelings come from.
Then there's the fact that Superman is only 25 while Wonder Woman and Catwoman are only 23 when Dick is 21. That's just wrong. I noticed that they kept Dick as far away from them as possible so it's not as noticeable.
I ended up only reading New 52 for about two years because of continuity issues between titles and the way they publish their books. They had so many crossovers that the way it was collected is annoying.
Example. Both Justice League and Aquaman vol. 3 collect the same issues because of the crossover between them, plus 2 issues that are unique to each series. If you're following both, you have to choose or buy double. I ended up getting Justice League Vol. 3 and pick up Aquaman's unique issues on digital, only to regret it later because Aquaman is better written. That said, Justice League is the spine of New 52 so it's still more essential to continue reading them instead of Aquaman, but Aquaman is just, personally, more interesting. I can pick both on digital, but I already have a trade collection that I prefer to be complete, thank you.
Then at the end, there's that transition from New 52 to Rebirth. Once Rebirth started, a lot of New 52 status quo is overturned. Some immediately, some more slowly. While it's still largely based and continued from New 52, at least 2 important characters are rewritten so that their New 52 stories don't matter. It's to return them to a more familiar state and it does give a better feeling for me who's familiar with the classic portrayal of the characters, but if you're following the whole thing, a waste of money is still a waste of money.
Yes, the change from post-crisis to new 52 or any other reboot also feel like a waste of money, just in case some people think I didn't think about that.
My personal advice is to not get into DC's main canon continuity at all, and just stick to timeless stories be it books, movies or TV. You won't get annoyed every story arc that way.
Unless of course continuity, in the long run, doesn't matter and you just wanna read whatever, then go ahead read whatever.
TLDR there are so many things happening behind the scenes at DC that it bleeds into how they handle their comics. The timeless classics and limited series are better because there are less corporate interference and less cook in the kitchen.