Installed it on my old laptop, a Dell XPS 15Z, and everything is running fine so far. Only issue I had at install was control panel crashing right after installing the nvidia driver, was solved with logging out and in again.

I don't see that much difference compared to 14.04. Everything just seems to work.

A few packages that make the experience evern better: Guake for a quick access (quake style) console. Kupfer for a fast launcher (I'm not a fan of the unity launcher).

Edit: I'm waiting a while to install it on my main work laptop, a lenovo t450s, since I use it with a dock and when trying 16.04 out on it (live usb), it would sometimes crash when undocking :/