Huge slap!
The technique is actually not the most incredible when you look at it but it does not hurt the game. The exploration is a real treat, the sound and artistic directions are high and the game is full of great ideas that make it all tastier (the glue cannon is particularly well thought out).
Side scenario, impossible not to capture the different references and inspirations claimed by the creators, and that's good because even if the frame is moving slowly enough, there is no loss of pace. Content side, it's more than reasonable, between the main quest and secondary objectives can easily be reached at 30h by searching a little (it would be a shame to do without).
We can not talk about this game without mentioning Arkane's "play as you like" touch, which offers good replay potential! I started it and am on my 2nd run with an intact pleasure.
Indeed, it has been pointed finger several times the heaviness of displacement. Once accustomed it is no longer a problem, it does more than add the challenge (at the beginning of the game at least).
To finish on the atmosphere, it is a real pearl: glaucous, unhealthy, underlined by a chilling soundtrack. Even in well-lit places, one has the impression that an alien can land from anywhere (the bestiary is also well supplied).
One of my big favorites of recent years!