Well, actually, Agents of Mayhem it's not that bad.
Obviously it's like Saint's Row, only without dick jokes and with more focus on agents.
Every agent have different abilities and specialties, you need balance your team unless you want to stuck, for example, at enemy with shield without agent who have shieldbreaking skills. Surprisingly, this mechanics actually works, and agents not only have different skills, but also plays differently and have personal backstories and missions.
You can get any car from the street, but it's better to just call agency vehicle with built-in nitro and jump in. There is different types of vehicles, in order to unlock them you need to find blueprints that hidden in city.
Encounters with main villain forces plays mostly like SR4, it's important to always move around and quickly switch between characters. But i must admit that shooting parts are kinda repetitive, but maybe it depends on difficulty level, you can change it in HQ before teleporting on mission. Higher difficulty - higher rewards.
So, inconsistent performance aside, i kinda like it. It's definitely not worth 60$, but everyone who enjoyed last Saint's Row games should get it on deep sale. Considering how badly this game bombed i guess it would happen really soon anyway.