The technical jump from Wizardry 6 to 7 was immense, I genuinely have no complaints about it besides petty stuff. It provided me with just what I expected; a complex, deep and hard RPG with lots of different classes, skills, enemies, levels, etc.
I recommend this version over Wizardry Gold because that port has several broken mechanics such as diplomacy which is essential to interact with other parties roaming the world during the adventure.
This game is also compatible with the cosmic forge editor for bug fixes and mods, and I think every modern version you can buy comes with a game map, manual and clue book, all of which are essential.