@ErlendHL If you would look a bit closer, it's 200% for one of the colors, and 50% for another. So actually it'd be 2+1+.5=3.5 for colored towers, whereas 1+1+1=3 for white towers. 3.5 > 3, which proves his point. Don't feel bad though, we all thought that at first. Right?
How is this fun? I think it is quite boring. You can easily get boosted with quests by friends that are high level, but then it's just boring. If you do the quests yourself they are boring and barely give you enough exp to get half the level you are at right now. 2/5 because it was worth playing for a little bit.