I've no idea why this movie has such a low score (about 5/10 at the time of writing.) It's basically a pretty entertaining (if somewhat dark) joke at the expense of modern celebrity culture. It certainly isn't overly profound or thought-provoking, we all know that there are a bunch of vacuous, TV-obsessed 20-somethings out there who constantly have their heads buried in their phones. But it doesn't deserve to be panned either.
The plot follows a couple of best friends as they trudge around L.A in a misguided attempt to achieve fame and infamy. The art style reminds me of Mission Hill, another seriously under-appreciated animation, which is also extremely bright and colourful. However, unlike Mission Hill, Nerdland opts for a much less innocent tone. Without dropping spoilers, it has a very Beavis & Butthead vibe to its comedic stylings, with lots of violence, filth and a generally grim subject matter.
If you have a dark sense of humour and enjoy something that oozes pop-culture references, give this movie a shot. You can certainly do much worse.