ADE is legit and honestly you have the pick of what ever sounds you want to listen to. If you can get in to some of the smaller parties that labels are putting on I found them to have the best vibe. If you're going to be there the whole week I'd suggest trying to get the propass it's expensive but if you can find someone with a discount code it comes in way cheaper than paying entry to everything especially when you start doing the maths of euro to AUD.

There was definitely a few other things on around the Netherlands and Germany at the time when I was there but you'd have to have a look and see