Currently at "mixed" and that about sums it up.
A lot of the reviews here mention not being able to even finish a run due to technical issues but in my case it worked.
I played a few 2 player sessions in the online coop and finished runs just fine.

The game itself is... fine. ok. You swing a sword, shoot a bow, block or dodgeroll or place a bomb and have an ultimate depending on which of the 4 characters you play.
This is what you always do no matter what you pick up.

The rest is just stat upgrades.
Maybe you have a critchance armor and even a charm that does lightning damage on crit but gameplaywise you would have swung your sword before and are still swinging it now.
None of the upgrade really make you play any different and theres very little difference in between a lot of the equipment.
What is more exciting: 20% lightning damage or +20% melee damage? Riveting choices.
So among armor, shields, weapons and charms the only thing that changes anything are the charms and even then most of those dont change much. There just isnt really variety to this roguelike.

Now that could all be ok if the gameplay is really solid but even that is... ok. Dodge/block and keep whacking at them again and again.
And unlocking new upgrades becomes extremely tedious fast.
At first you unlock stuff with 10 upgrade rocks and once everything has been unlocked you are able to unlock the set for 30 rocks.
This then goes on until you are suddenly unlocking thing for 100 rocks each or more, but the speed at which you get rocks does not increase. So your unlocks exponentially grind to a grindy halt.

But i think the most important part here is that the game has been abandoned. It is a miracle that online coop works at all.
But even though my runs werent ending due to bugs there sure is a lot of them.
Not being able to equip charms, being able to equip infinite charms, not being able to pick up items, suddenly losing all control, many small unpleasant things that can happen.

So should you gamble 15 dolalrs on a mediocre roguelike that will probably not work?
I think your time and money is best spent elsewhere.

Rough as guts, pop ups I can't get rid of and player just gets randomly stuck.
Play something else. About 6 glitches in the 20 minutes I played good god.