Side mounted (took a bit to sort out), reverse orientation (the physical 7th & Reverse gates, the ones you lift up the gearshift to access, are on the left). Have it working in rF2. I'll need to get creative for a mousepad as I had to remove the one secured to the top of the rail on which the Active Shifter is side mounted.
No, I'm not faster with this shifter. Yes, I'm enjoying the enhanced realism. I've already turned down/off RPM vibration as it just makes the whole rig vibrate. The gear lever may seem large in my pic (and other pics), but it's really about the same size as a vintage Mini with remote shifter or Fiat X-1/9 or Fiat 128 gear lever. Noise is about the same as most simracing shifters on the market, though it may differ in tone compared to the others.
Gear engagement, even with the tension adjusted lightly, is notchier than most production transmissions produced, particularly compared to cars with cable shift linkages. At my light tension setting, however, it is still a long way from how notchy a C6 Corvette is!
With the shift pattern shown on the display, I discovered that in real life I naturally lift up the gearshift when downshifting from 4th to 2nd... uhm, yeah, accidentally finding reverse in-game means I'm going to quickly break myself of that unintentional lifting habit! I could go back to the original orientation, but that would make the display and control knob difficult to see & reach.
Still have lots of adjustments to explore... if it currently emulates dog box transmissions, it is not obvious how to do that. Trucking sims are called out as unsupported.