I did the full workup on their company and website before deciding to contact the owner, Frostbite, to have a personal chat with him. There were a few things that troubled me, but after hearing him out I was confident that this company could keep me satisfied. They completed the 0-HERO in less than six hours of gameplay, and was discrete and professional about it. The prices are reasonable, and they are open to assisting you with accountsharing, or letting you play your character - it's all up to you.
This company comes highly recommended. Hell, I'll even be a reference if anyone is in doubt that this company protects your best interest.