Anandtech posted a review on the Acer Aspire V5-171 Notebook

With all of the coverage we've done of ultrabooks in recent months, it's easy to forget that the big vendors are still out there plugging away with more basic, fundamental designs. Intel has expanded the definition of "ultrabook" enough that most consumer-grade systems being made available still fall into those categories, but ultraportables still bear a pretty substantial premium. At the same time, tablets coupled with the persistently dire performance of Atom have turned netbooks into a virtual flash in the pan.

There's a gap in the market that vendors like Acer, HP, and ASUS are quietly serving, though. It's clear from the way netbooks took off that consumers are interested in a small, inexpensive, portable notebook with just enough performance, and that's something you're not getting with ultrabooks. As you're going to see today, there's a lot to be gained if you're willing to sacrifice a little bit of Z-height. We have the Acer Aspire V5-171 on hand today. Acer is asking just $550 for an 11.6" notebook featuring an Ivy Bridge i5 ULV chip and 6GB of RAM, so what's the catch?

  Acer Aspire V5-171 Notebook Review: The Death and Rebirth of the Netbook