The Disgaea series has never focused on changing its formula but rather improving upon what it has been doing for years, adding a few new parts to the mix to keep things fresh. Disgaea 5: Alliance of Vengeance does not take any risks but it does offer some fresh new additions which breathe life into the franchise.
Disgaea 5 is, for better or worse, the same old grind fest that the series is known for. You can customise your party and gear in a number of ways but all require an investment in time. The more time you pour into Disgaea the more you can get out of it. Even after levelling up my party, I was still finding new ways to build out my team by reincarnating some of them into new classes, grinding up some new gear in the item worlds and setting out on another adventure. This replayability and depth has always been one of the best parts about a Disgaea game.