Well, I certainly noticed A LOT more bugs in NV than I ever did in ... Morrowind, Oblivion, FO3, and Skyrim together. That is no joke. Maybe it's personal experience, but that is why my view is the way it is.
The actual content? I love NV, but like I said, just too glitchy and I'd prefer that Bethesda did it all from the ground up, simply because they seem to be more competent at it.
(Not to say they don't create bug-filled games on release, but that is to be expected with gigantic games like these, and it seems like Bethesda has done a better job of addressing those problems and fixing them than Obsidian ever did with NV.)