Got my first S17 Pro (50TH model) up and running.  As smooth of a startup as typical with Antminers.  Just plugged in both power cords and viola.

I've only tried "normal" mode so far and I'm getting 51 TH on average and about 2050 Watts measured with my smart switch.  So right at 40 J/TH efficiency.  The noise seems similar to other antminers.  Not noticeably louder to me but then again I have 40 antminers running in my garage so I probably wouldn't notice.  And I haven't tried turbo mode.

Edit1: Turbo mode results: 57 TH, 2500 Watts - 43.8 J/TH.  Pretty impressive! And not really any louder that I can tell.

Edit2: Low power mode: 40 TH, 1540 Watts - 38.5 J/TH.

Below is a pic of it and the dashboard.  I'll be trying the other modes when I get a chance.

https://imgur.com/k6aMzDf
https://imgur.com/I2fRpwD