Already talked about this fusion on another topic, but I'll repeat it anyway : this is bad for both Gamigo and Aeria PLAYERS.
Yeah, you know, players. People that connect to your games and play on yout servers. Sometimes you tend to forget them. You forgot about Florensia before even alaplaya has been fully migrated, S4 League is currently unplayable because of bots/cheaters, hundred of people are lost and don't know how they are supposed to play. And according to this article : http://www.gamasutra.com/view/news/276292/Layoffs_rake_Aeria_Games_in_the_wake_of_Gamigo_merger.php
This isn't going to become better anytime soon.