anothername: If its anything in quality like the Cube mod its most likely very awesome and with professional voice-acting; not the "one dude and his mic" stuff that usually is in mods.
The voice acting for Nehrim (German only) was very high quality, and from what I've read Enderal also has very high quality voice actors (including multiple professional voice actors who have provided voice acting for other AAA games). The SureAI team doesn't do things in half-measures.
0Grapher: It looks freaking amazing. Check it out even if you (like me) don't like Skyrim!
This bears repeating. The character development system is complete redone compared to Skyrim; in Nehrim they used a system more similar to the Gothic series, with enemies giving XP, then leveling providing learning points that could then be spent at trainers. It sounds like they went a similar route with Enderal, although with some additional depth added (the shout mechanic from Skyrim was redone to support skills associated with subclasses players can choose, which cater to various play styles). It's my understanding that there's also no level scaling, with the world instead being divided up into areas for recommended character levels; you're still free to explore all you want, but go into an area far above your level and you can run into some really tough enemies (although can also pick up some very nice gear if you manage to pull through).