Well, not even one single post about rewards suck?
I'll do it then. I guess we tried at first, but after realizing that we would get all of 10 extra Talany cells for a win we didn't even try. And why should we? At one point the game killed 3 of my lineups in consecutive attempts to attack. Always the same, an error message that BG is not available right now (or whatever), back to the main screen, and when I check back into BG then my monsters are lost.
So, I guess it took me 1-2 hours to place defense and attack, and as a reward - drum roll - 150 orbs and 10 Talany cells. NEVER AGAIN.