Is 1366x768 & 135 DPI fine for a 11.6 screen?

I've seen so many contradicting answers to this on google. I have a Lenovo Lynx K3011 which is 11.6" and has a 1366x768 with 135 DPI backlit IPS screen. To be honest, the screen is not glossy and I find the screen one of the best I have ever looked at. The whites are white (which I found to be yellow on the Asus VivoTab Smart I had before this), and as the screen is quite matte I find it easy to read.

I would be looking at sticking with a 10-11 inch tablet, I've been looking at the Dell Venue Pro 11 but from what I've read there will be absolutely no benefit upgrading to a 1920x1080 screen on an 11 inch tablet. Is this right?

Forget specs etc, I'm only interested in answers about the screen.

You will be able to notice it slightly, if your looking for it, but its not going to be too noticeable. For a 11.6 inch screen 1366*768 is perfectly fine. (imo)