I had mixed emotions about the ending. But the dive down to confront Zinyak...everything within me was smiling. I screamed at the TV (I play console before getting PC) as soon as The Touch started to play, and then those lines from the original Transformer movie...my sibling was rather disturbed by my fanboyish squeals of joy and came to watch the battle against Zinyak (they had seen most of the story to know what was going on) and we both agreed that while the concept of fighting Zinyak in a mech suit in that Iron Saint armor was very good, it wasn't executed as well as it could have been.
Finally beating the snuff out of Zinyak was rather stress-relieving though, it felt like a weight had been lifted and that justice had been done...and then when we both heard about the time travel capability we both shouted at the TV "GO BACK AND SAVE EARTH DAMMIT". Of course that never happened, and when we saw the artwork of the Saints screwing around in history we both just laughed and forgot that the earth had been destroyed for a few moments anyway.
So the ending...I didn't entirely like it, but I didn't hate it either. So what did I do after finishing it?
I put the first Transformers movie on. Thanks for rekindling my addiction, Volition!