You can find helpful resources at a previous meta post: European A&M Gathering - Helpful Travel Tips & Resources (Tickets, Accommodation, etc.) including tips for Hotels, Getting Tickets, What plugs to bring, etc.
I suggest that we meet up on the Saturday at 13:00 at the maid cafe.(if you think another time is better, comment below)
Use this meta to ask any questions, look for a cosplay partner, a roommate, etc! :-)