Terrible summon rates, would not recommend spending in this game. I have spent quite a bit and have played for over 90 days. If you do play this game f2p is the way to go. It's just not worth investing any money as you will not get your monies worth. All recent events are very bland and unless you spend money as well you won't receive the best rewards. Good way to waste time but I would recommend doing something more constructive with your time.