Just a few suggestions

What I like:
- The game is gorgeous. Even compared to other Xbox One games. Very good job on the look and feel of the game.
- The non-random execution buttons. I love that a lot of the time I know what buttons to push even before the color shows up because of the nature of the attack and the connection of pushing X for sword execution moves and Y for shield and environmental execution moves.
- The fluid combat is believable and fun to watch.
- No big buttons on the screen as I have seen in the past. This is probably a difficulty setting thing... But I really appreciate that there are not big Xs and Ys on the screen during executions. Perhaps those are enabled in easy mode or something?

Bugs encountered:
- Invincible Barbarians: I was in the Colosseum with another player and we were in the middle of the third arena when a barbarian got frozen on the edge of an archer perch. The objective of the arena at that time was to kill all of the barbarians... Which was now impossible because the barbarian went into a state in which we couldn't attack him. We had to quit the arena in order to get out of the broken state that the game was in. Perhaps there should be some sort of timeout on each objective (for instance, if the crowd doesn't become entertained by the current objective then consider sending in another one for the gladiator to accomplish). That would help get around weird bugs like the one we experienced.

- Ballistas: First off.... The ballista is flat out lame in every experience I've used it. It's more like a mounted machine gun it fires so quickly. The reason it belong in the bugs section however is because the aiming is off. I have to aim off to the left of every target that I shoot at in order to score hits. It's a good thing that it auto aims to a point otherwise it would have been pretty infuriating during the campaign. Though it still was annoying.

Gladiator Mode

Navigation: When starting a solo game, there should be a back button on the God selection screen. It was a little annoying to reach that screen and then change my mind about starting a game only to find out that there is no way to return to the previous screen.

Gameplay: As many people have noted, the gameplay gets a bit repetitive. It would be great if the different arenas had more challenges available just to shake things up. What would help the game the most is different weapons to allow for different combat styles. Even if it were just the weapons that the AI already has access to. A great axe, two short swords, a big hammer, bow + sword combo, etc... If new weapons that provide for new combat styles were to come out that would help the game immensely.

Campaign

The campaign is short and pretty bland as critics have noted... However, This doesn't bother me too much because just like most games these days the real guts of the game are in the multiplayer modes. The campaign was pretty much practice for the gladiator arena.