Stella Deus is quite disappointing as a tactics rpgs when compared to others if of its kind like FFT and Disgaea.
Like all tactics-based rpgs, Stella Deus uses job classes which can be levelled into much stronger ones, with class name changes included. This is done through constant battles and the exp gained from successful attacks (melee, ranged and magic), supporting actions, and use of items. Stella Deus has a way of creating high levels gear and weapons from current inventory which is pretty exhaustive in the amount of combinations can be used. Though some combinations just doesnt make sense in that some powerful weapons and gear can be made by combining a weak low-level item with a medium-level one while combining two high-levels can get a player a useless low-level item. As fun as the item creation system is this small flaw can make things frustrating at times.
The voice acting in Stella Deus is one the worst I've heard in games, so far. The people who did the voices for the hero, the supporting characters and some of the npcs I can only sum up as being below-par and just downright amateurish. It sounds as if the actors hired were just reading what was put in front of them without any sort of emoting required. It doesn't help that the story itself is pretty dull and uninteresting.
The gameplay itself is pretty much your standard tactics-style grid battle where the player positions his party as strategically as possible to gain an advantage on pre-positioned enemy units. After a few battles its really simple to figure out just how to position your party so that you pretty win every battle with little or no trouble.
All in all, Stella Deus doesn't match-up to the great tactics rpgs like Final Fantasy Tactics, Tactics Ogre and Disgaea. It doesn't even come up to the same level as the second-tier tactics rpgs like La Pucelle, Makai and Phantom Brave. I'd recommend this game as a rental, but even then I'd only do so if a person really wants to try it.