All things considered Medieval Conquest looks pretty darn good. It’s not very realistic, but this is a fantasy game with lots of humor in it so the exaggerated art style is probably far more appropriate. Being a strategy game more than an RPG, you’ll also spend more time in a zoomed out view than the box-art would suggest. The variety of monsters is also very engaging. There are also lots of little special effects going on as well, especially with mages.
Since the game is filled to the brim with humor, the sound is generally pretty entertaining. The really strong British accents can get a little irritating, jokes or not, and while you don’t get anything quite as good as the one-liners in Warcraft III, the game’s audio as a whole is probably built more around humor than any RTS I’ve ever seen.