I will start my post by saying this post is all of my own and my own opinions on the event and their organisers and doesn't necessarily represent those of anyone else.
Horrible horrible event with terrible organisation IMO
Only reason to go is if you like to walk around a very very very overcrowded hall with people (mainly 14-17 year olds) dressed up in cosplay and every stall selling Anime/J-Pop/Japanese stuff and hoards of kids sitting on the floor playing either Magic The Gathering cards or Nintendo DS clogging up the actual walkways
I've been twice...... unless they get an amazing guest I will NEVER go again. The organisers haven't got a clue, and that's coming from someone who isn't a fan of Showmasters (Collectormania, London Film & Comic Con, etc)..... the MCM make Showmasters look like the grandmasters of events for the UK and that's saying something!
Always makes me laugh when they say it's Europes biggest Comic Con.... maybe biggest CON yeah!! It's only big because of all of the cosplayers, nothing more. Do not go if you're expecting to go for movie stuff.... unless it's anything Japanese related you'll be sorely disappointed
If however, you've been before, and you enjoy it then fair enough I hope you have a great time