One of the better 40k games in recent years.
The graphics are insane, the movement and animations really give the feeling of playing a 8 foot super soldier. The combat is fun, hitting a perfect parry following up with a gunstrike never gets old. The finishers are gory and glorious. The voice acting is very well done.
It has a good campaign (co-op with 2 others), some decent PvE (Operations) and PvP.

However, the gameplay loop is what you'll be doing most, if you don't mesh with it, you'll unlikely enjoy it. If you find it addicting, you'll be hooked like I am.

My only real downside is the lack of content. Campaign can be finished in 11 hours or less, and has no achievement for playing on the hardest difficulty setting.
PvE (Operations) only has 6 maps with little variation between difficulties.
PvP only has a mere 3 maps, with 3 game modes and has it's own set of issues.

An Epic account is needed for online. Only PvE & Campaign are crossplatform. PvP is not.

Hopefully, more content gets added and other issues get resolved. But as a fan of the Warhammer 40k universe and super soldiers, I'd say it's worth it.

Edit: They have included mod support! and already added another PvE map, this game is in good hands.