You will probably find lots of guys in both camps.
I for one though think they look unnatural (since of course they are). Breast should stand up like that on an 18 year old girl but they look a little odd on a 45 year old mother and positively creepy on a 60 year old.
Not to mention they feel like a water balloon with skin wrapped around it.
Yeah, and the dirty little secret is that for many women, they feel like NOTHING. IOW, they give up the natural sensations in their breasts for the appearance of big 'uns.
No thanks.