I've got one and I love it! Its got LOTS of room in it. The A3000 motherboard fits well, and it looks great. I hope you got the Mediator as well? The stock daughter card will not work in the tower. It sith up instead of flat like the mediator. None of your slots would line up.
The ONLY think I dont like about it. Elbox does not provide any docs on how to conect the wires. Look at my profile and then go to my photos. I have some close ups of the wire conections from the tower to my A3000 and the mediator boards. I'll help with any other problems you have too. Oh and also as you put the mounting screws in for the motherboard. Do not tighten them at first. Put them in just enought to grab untill all are i. Then tighten them up. That way the holes are line up correctly.