Great to hear that you've had fun with Solo mode.
It is easier, also in my opinion, when Monsters are cooperating and not hell-bent on destroying each and every monument. Doing as many Quests as possible is helpful too.
With the 2 monsters at Zeus, I thought I was done... I got very lucky because I was so busy fighting a strength 10 invasion.
I just played my fist 1v1 training game and it was well received by the player and spectators. I cant wait for the expansions to ship and will also go all in on Nemesis!