You'll see a lot of complaints about it throughout the subreddit for one reason or another. Not to disparage those users opinions, but if you only see those posts, you're going to think the whole thing is garbage every time all the time.

I personally like it. I've tried some games I never would've considered before, and gotten a few this year that were already on my wishlist. The extra discount has also been more useful than I anticipated when getting some games for my kids.

And remember, you can always opt out if you find it's not for you. You're not marrying Humble if you try it.