I have an ASUS 1215N Eee Netbook and I use it only when I travel, mostly for Internet access and for downloading and storing images from the field. It came with 2GB of memory which I upgraded to 4GB. It runs Windows 7-32 bit Home Edition and will run Microsoft Office as well as Lightroom. I also have the Canon software suite loaded, including Zoombrowser. These applications all run, but it is a slow machine as the dual-core Atom D525 CPU only runs at 1.8Ghz - you just have to accept this aspect of its operation, although the graphics with the NVIDIA ION graphics processor are great. I do not do any serious post-processing on it, but it serves to review my images at the end of each day and to maintain an initial download from the memory cards. Also, MS Word runs well enough to keep a notebook of the day's activities and any other bits of info I need. It runs Skype quite well so that my wife and I can talk with family when we are travelling (assuming Internet access, of course).
I do a backup of the images from the netbook to a flash drive and this combination seems to work well. It has been to Africa and various places in North America and I have never lost an image. The thing I really like about it is its weight. Unfortunately, this one does not have a USB 3 port, but it does come with 3 USB 2 ports - I think the USB 3 ports were only available on overseas machines when I bought mine.
Basically, it does what I need it to do and that is download and backup of my field images and provide Internet access while I am travelling. It is going back to Africa with me in about three weeks.
So that is my experience with this netbook. You may want to look at this one, compared with the one you mentioned in your posting.
WesternGuy