So since Sept 2017, they had fairly consistent performance with bunch of wins but also some bad placements, not super dominant but you can make a case. All that lasted till Dec 2017 though, so I would say it was the honeymoon period.
Their performance started to go down a bit, and Faze ended with 4th placements with two notable 2nd place finishes in ELeague Major and IEM Katowice, which was end of February 2018.
After that it was all 4th - 8th placement, with one fluke 1st place in Epicenter 2018.
All in all, it was good but very short-lived. After that they had pretty bad showing until Olof "took a break" which really just meant that if he kept playing, he would only be digging his grave deeper.