Pros: image stabilisation, water resistance, optical quality, convenience
Cons: slight yellow tinge to whole visual field, faint yellow edge to dark objects
I bought a little Meade telescope for planet gazing, but the setup took so long I hardly ever used it. So I sold it and bought the 18X50 IS binos...and they're superb. Just point, press the button, and the image is rock solid.
I've seen 4 moons around Jupiter, the rings of Saturn. I also use them for wild life watching - and they're just marvellous.
A couple of small minuses:
1) I think (and I could be imagining it) images have a faint yellow cast
2) Against some backgrounds (eg birds against cloud), I can see a yellow edge to dark objects.
But overall, the convenience, simplicity and quality have made me totally happy with these.