If you play smart, it's not tougher. You would need to get a sweeper and run it full time to beat the E4 with no problems, but as I get older, I learned that the E4 now needs at least 10 Revive items and 2 poke that can rock shit. Starmie, Gengar, Lapras, Krookorok. Big boys that can nuke the E4 v1.0 help you get through it and then you can play the regular game. The regular game being... just people grinding and farming. Good luck!