I always turn off the IS in the body and use the lens, getting back even 2 additional stops with the slower shutter speed

that's a 10x slower shutter speed than the 1/focal length

I mean it is in focus the instant you depress the shutter or touch a focus point on the touch screen!

Given its slow f/4 maximum aperture at the wide end and slower f/5.6 racked out, the ability to use some slow shutter speeds and still get sharp images in low light is a blessing

That said, it's light enough that you absolutely can handhold and shoot even at relatively slow shutter speeds

For slower shutter speeds and low light, will need a mono or tripod

The images speak for themselves, but I'd say the combination of fast shutter speed and OIS dealt with my so-so camera handling technique admirably.