I own the Asus 1015PEM and absolutely love it.
My only complaint is running Windows Starter, or Windows 7 for that matter. It's not very smooth and snappy as I would like on a netbook. Do yourself a favor and upgrade the ram immediately after purchase if you intend to run Windows.
Otherwise, run Linux instead, it's much better, from both a security and performance standpoint, and there are certain Linux OS distributions made specifically for netbooks. I recommend Jolicloud.
http://www.jolicloud.com/