I have been repeating in the Forum that I won’t be doing the season. Nothing against the game. I just have been playing too much and reached the saturation point during S7. I still did the PTR but found the experience disappointing. Have not played since until this week-end.
I have been reading so much positive feedback in the Forum for S8 
that I finally decided to jump into the season.
I went for a SB, Stinger. SB is supposed to be the class you want to play in S8 and it is the remaining class I still had to try. When done with my Stinger, I am planning on switching to Crushing Hand to keep melting T4. OK…still have to get there with my Stinger.
The positive.
Levelling to 60 and up into T1 was really great, so much better than what I experienced doing the PTR. I was probably already tired of the game. Maybe my build was not good for levelling (Crushing Hand SB). Maybe I didn’t do the right choices or was just unlucky with the drops. In S8 live, levelling went really smoothly for me, with constant build progression, items dropping with the right quality when I was needing them. Not perfect but close.
My only negative point is that the process was way too fast. I like when there is progression. It was adequately tuned for me this season but too short. I soon reached my first wall: levelling my Glyphs. But I am leaving the negative for another post, once I have played a bit more.