the endgame only took me about an hour and a half... it was repetetive, but most everything died in one hit except a couple of bosses so it wasnt exactly time consuming
that said, the game would be a lot better if fully half of all the mooks were excised from the entirety of it. imagine how much better it would be if deeproads and carta hideout and the long cavern areas were all half as monsterfilled...
the game still would have taken me about 50 hours to beat, but it would have been less grindy-feeling