Combat wise its the same, but other gameplay mechanics are different such as the item crafting / upgrading. As you actually have to use resources rather than just grinding things into dust and using that as a main resource pool for each weapon type. Treasure drops are from battle and there is no circle type of system that Demon Gaze used. Also you do not have to worry about having to buy more members, as once you finish the story introduction you can fill out a full party right away. MP in this title is also handled differently in the older Wizardry type of design where spells are separated into tiers each with a limited amount of uses. When you lv up you get more uses per lv tier. Example below.
Lv1. Fire, Water, Etc x 8
Lv2. Poison, Quake, Etc x 5
Lv3. Fire Wall, Tidal Wave, Etc x 2
The example above shows you can use any of the lv 1 spells 8 times total, lv 2 5 times total, lv 3 2 times.
Leveling up is done by resting at the inn, same with recovering MP for the spells.
Also the Encounter Gauge system is something different as the higher that value in the upper left goes the stronger enemies will get lv wise. But better rewards such exp / money / loot.
Narrative, setting and some gameplay mechanics are different. But if one is thinking in general terms of how combat is, that is pretty much the same for the most part. Except not being able to target exactly what you want in a group of enemies. Though it does not really effect you in a negative way. It just feels odd as most other games allow for targeting individual units in the same enemy type group.
Dont buy comments like much better atmosphere as that is subjective. It depends if you prefer a fantasy to a modern setting.
The last thing that is important to others is the game does not really contain fan service to the level like how some scenes in Demon Gaze did. Though there is 1 scene that some consider to be fan service, but is tame in comparison.