I've used this 400ISO B&W negative 8mm film in vintage clockwork cameras to shoot at a jazz club, and finished off a couple of rolls in daylight conditions. It handled the jazz club far better than expected, in fact the local jazz jam and one band have used footage on their social media to promote their events! Given the tiny frame size, the grain is not intrusive. I process this myself in an old Lomo spiral tank in Ilford Microphen and scan on a cheap home scanner and the results are fine.
For the material I've shot in daylight, mostly fun stuff with my cats, the images are surprisingly good for such high speed film at f16 and probably over exposed.
If you're looking for a B&W 8mm film that can be processed in any B&W chemicals and scanned (not projected) you can't go far wrong with this.