I bought Div1 early. I hit 30, saw the endgame, noped on out. Balance issues, skill issues, none of it was fun after 30 back then.
I finally started playing Div1 consistently around patch 1.5. That means it took them about half a year to balance everything enough to make it fun without being obnoxiously grindy, and add a feeling of accomplishment without ragequitting a dozen times. I think by the time Resistance came out, the game was finally fully fleshed out as far as weapons and classes were concerned. You could set a goal of what gear you want, and how you'd go about getting it.
That only took from March 8, 2016 to December 5th, 2017, so about just shy of 2 years. Judging from that track record, I think it's gonna be a hot minute before Div2 is up to par.