Canon IS 15 x 50 binoculars?

Being brand new to this group I hope I'm not beating a dead horse by asking
what the general consensus is as far as the Canon Image Stabilized
binoculars is.

If there is an FAQ that would answer this, could someone point me in the
right direction for that?

I know they are expensive, besides that, what is the image quality like?
Good for binocular astronomy?

Thanks,
Francis Marion