What's not being discussed regarding the jungle changes is that it's super easy to clear now. Before the mastery and jungle revamps, I couldn't clear it with cloth+5 because I'm not level 30 and I didn't have a dedicated jungle rune page (mainly ASPD).
I ran a lot of jungle custom games and I can take a bottom tier (or non-existent tier rofl) jungler such as Garen and clear it with ease now. I'm just running my standard AD carry rune page. I can only imagine if I ran a top tier jungler with aspd runes.
Once Riot fixes the exp and gold issues, jungling will be awesome.
One of the big complains about the new jungle design is that counter jungling is worthless. Spawn timers on the various camps are just too short, so you can't really stop the other jungler from progressing compared to pre-patch.