I had 130 cubelets, all gone -.- It takes so long to get Cubelets now..
"All gone" isn't true. You got cubelets from them. I had 320 cubelets: all were useless. I wasn't saving them, I just didn't want to waste time opening them. Now you can get things out the cubelets you couldn't get before (like a miniature and gadgets). And it's easier to open them now, because you have so little. I do agree that it takes long and sometimes a bit random. Like I do get 5 a day or none at all (full days playing, don't judge lol).
And the daily challenges aren't really worth it either. And I believe they changed it from cubelets to lootpoints. So even if you do all daily challenges you only can buy one cubelet (and surprise surprise I haven't been able to do all the daily challenges, because of bugs in it).
So yes, it takes longer, but now in my opinion it's more fun to save for the uber cubelet. It's a shame if you get something completely useless out of it though when you had to grind for so long though. Maybe a challenge/quest update next :P