I personally enjoyed my first session of Marathon (put 11 hours in) The gunplay and team fights are very fun.
Looting, UI, and menu navigating is a little confusing for sure. The faction system is cool. Seems like most of the dope will come from looting legendary cores, mods, and implants and making cool builds on full release. There’s valid criticism to be had in a few areas of the game but its def seems to be mostly negative sentiment around it which is unfortunate.