Not as bad as Gamespot would have you believe, perhaps - yet definately bargain bin material.
Almost all commercial adventure games nowadays are strictly low-budget efforts from little known European development studios. The reasons? The big studios stay away because these games aren't lucrative enough. The small studios go for them mainly because they're relatively easy to make.
And sadly, Daemonica is no exception. The game literally screams "amateur effort", "minimal programming" and "no money".
I'll assume you've read Gamespot's review, and I'll try to provide the feel of the game instead of repeating what you already know:
Graphically speaking, the 3rd person forced perspective reminded me most of a user-made Dungeon Siege module. This feeling is reinforced by the fact that your character is never seen interacting with his environment in any way apart from walking, running, or fighting. You need to pick up a body and put it on a pyre? Click the body and the game will cut to a static screen showing a (rather shabby) picture of your character carrying a body while a voiceover drones about what happens on the way. Then you'll find yourself back in control, with your character standing next to the corpse-laden pyre. Click your flintbox on the pyre - another static screen, another voiceover.
Gameplay wise, combat is simplistic, rare, and feels tacked on. What few puzzles there are are laughingly easy, and about half the game time will is spent looking for these silly herbs. And talking of game time - it's short. Expect to finish it in 10 hours. 12 if you REALLY had trouble finding these elusive "Devil's luck"s.
The game actually does quite decently on the sound front: Music and sound effects are ok. Voice acting is provided only for the main character - the rest of the world communicates strictly via text. While the voice actor is competent enough, you'll notice a couple of gross translation errors. Also, if you need any further proof of the game's low production values - during one of the aforementioned static-screen/voiceover combo the narrator audibly chokes, cough, sips some water, sighs, and keeps reading. That's almost hilarious enough to be worth the admission price...
So why do I feel the game is not a complete failure? For starters -
the setting is quite original. The whole summoning-the-dead shtick is done very atmospherically, and the need to find out various details about the deceased in order to perform the ritual makes you take notice of what you're being told by the various characters. You know little about your protagonist's past or abilities, getting just enough intriguing hints to keep you interested. in general, the developers chose a minimalistic approach to the storytelling and exposition - which does the game a ton of good.
So the verdict? Considering the paucity of adventure games nowdays... Maybe. If you're really bored. But definitely not for the full 30$ tag.