This was supposed to be a "replacement" for GvG (inno's words), it is nothing like it. It is just a mash together of GE, Settlements and GbG and totally lacks imagination by Inno, just copy and paste coding. I had hoped to make 11 years in the game but I think this will be my lot.
I'd look on the positive with gvg, they could have said gbg was a full replacement years ago and removed it then (Not too sure why they didn't tbh) but announced it to run alongside it. So they added years to how long it was left to run.
QI does seem like they have thrown several coded mechanics in the air and left them to drop into place. Unfortunately, in my opinion they've used the least interesting mechanics just the repetitive ones. Build, delete, build delete and restart repeatedly.
Now they're adding QI boosts to settlement buildings, someone somewhere thinks everyone loves to constantly be in state of deletion or rebuild and is trying to force everyone to do it for some heavily boosted buildings to keep up with others. Can't even imagine how monotonous it will be competing in QI whilst also doing Settlements. Certainly not doing either myself ever again, everytime I attempt a settlement these days I shut it down after 2 days it's like being made to restart the game every week or so. Even in events the build this building or that are the most annoying quests even if they take only a few minutes.
I can't even try QI, the thought of doing anything remotely like Settlements or restarting and rebuilding cities constantly is enough to completely dissuade even attempting. There's nothing I find engaging about the whole concept. The rewards aren't even a consideration as I can't get my head and thoughts beyond the mechanics, or why someone created this thinking it's a good engaging addition.
It's the first new concept ingame where I have had to say to guildies you'll have to figure it out yourself I'm not looking at it at all. Zero interest, not even trying it.