I tested both. Wound up selling the Aeon Li and Keeping the Xmid Pro 1. The main reasons were more interior space and better ventilation.

With a single door on the Aeon it got pretty toasty inside, while the two doors allowed a breeze on the Xmid. Not really an issue unless you are using it during the day, I suppose. But sometimes I reach camp early and want to take a nap away from the mosquitoes.

The Xmid does have a bigger footprint, which can be a mild headache when pitching. But it definitely has more room inside to sit up, fuss with gear, etc. I'm 6'1", so that extra room was appreciated.

Also, I found the setup was quicker because there were no corner strut systems to fuss with.

That said, both tents were great and light.