First off I'd really just like to say thank you guys, for a very enjoyable, very reasonably priced game without annoying DRM. I really hope your attitude toward sales pays off for you and hopefully it's something that other companies can pick up something from.
I've not been able to play a huge amount yet, so the only things I've noticed that annoy me are pretty cosmetic.
When you are in the lobby you cant select your colour, you have to move to a specific slot to get a certain colour.
Again when in lobby you can't change a bot from one to another (eg from normal to hard bot) without emptying the slot first, which is just minor tedium and irritation.
In game it would be just super if there was a little list at the side that showed what summons you currently have working under you. It's not always easy to see who is who in the mob of battling weenies, so a list would be great to let you know when you need to resummon someone and who it is that needs respawning.
A tutorial mode would be nice, for people that bought the digital copy and dont have the manual. It took me three games before I realised there was a shop you could buy items from...
Other than that I have a couple of stability issues. The game doesn't handle alt-tab very well, and about one in three times when a game finishes loading (but before the game actually starts) my computer completely reboots. This one is pretty seriously annoying. I'm at work posting this. When I get home I'll generate a dxdiag and pop a proper post in the tech support forum.
In all though, the game is a blast, great value for money and the lack of frustrating DRM more than makes up for the minor issues I highlighted.