What time are you traveling? I wouldn't go near New York City during rush hour or during the day, but late night - very early morning sometimes isn't bad. It is pretty cool to drive through NYC at, say, 3am. But then again, that is when you might hit construction zones - although they are a lot nicer to drive through than rush hour traffic! A lot of repaving has been done the last couple years, but I95 is so heavily traveled that new pavement only stays smooth for about a year or so.
Tappanzee Bridge can be busy... and Lord knows those "temporary repair plates" that they use on that bridge are horrendous. Has anyone been over the bridge recently? Are those plates still there? Otherwise it is a pretty nice drive.
The suggestions about 84 and 81 are something to think about, and I would suggest that route for daytime travel. Again, though, road conditions on those routes were not great when last I was on them about 3 years ago. They may have been repaved recently.