First thing's first, if you haven't already watched an anime in the VRMMO-type category (including SAO, Accel World, or Log Horizon, to name a few) then watch one of those first, to see just about everyone else's perspective.
Art: 8 - The character and enemy models generally aren't the greatest, compared to anime that came out a few years before it, but the environments and effects are done well enough. I like that the character models are somewhat differentiated.
Sound: 8 - I'm not the best judge of this category, but the intro song is alright and the sound effects match the action well enough that I suppose it deserves an 8/10.
Story: 4 - Here's where the anime goes wrong. Just about everything that's done here is a clone of any number of other anime. There are many shots of a tower in the distance, but instead the story focuses on a dungeon, which goes down. Not very logical, now is it? The workings of this anime are similar to VRMMO-type anime, where there are levels and respawns and such, but it never explicitly tells you that they're in a VRMMO. Instead, they tend to take matters very seriously and present this as the real world, just with goddesses everywhere. They actually get some of the lore mixed up, as at first they were showing off some gods as goddesses (ex: Hephaestus), so I thought "I guess they just wanted to be consistent," but then they introduced us to Hermes, a male god. This anime has a lot of missing backstory (why are there walls? Are there any other towns, etc.) and left a lot of things to be resolved in the second season, which I suppose is alright. Hopefully that season or an OVA or two will explain the story better. For right now, it just drops the viewer in, expecting them to understand everything that's going on.
Characters: 4 - The characters in this anime are very cliche, they fulfill the typical harem roles, that is to say, one alpha and a dozen soulless betas. Other than a few main characters, and perhaps Ryuu, the characters have no personality. In fact, one of the characters (Aiz Wallenstein) is a clone of Mashiro Shiina from Sakurasou, just a pro fighter instead of a pro artist. The characters in this anime are one of its weakest, if not the weakest, point.
Enjoyment: 8 - I like this anime. That is because I play games first, watch anime second. If you are not like me, then you will likely be annoyed this anime exists. There is sometimes too much fan service (such as bouncing boobs in the beginning of every episode), and there are quite a few cliches, but overall it's okay. I watched it in a marathon, and wouldn't mind seeing a season 2 to tie things up.
Overall: 6.4 - Unoriginal ideas, but a few good points make this a decent show. If you like games and/or VRMMO-type anime, then I'd say watch this. It's not the best, but it satisfies.
