Taking the netbook crown from the Acer Aspire One in 2009 Samsung have learnt from their Acer's mistakes and the NC10 has potential for 2Gb of RAM.
Atoms processors are little changed from their release in 2008, the exception being the dual core machines costing around twice as much as this one.
You get a stonking 1.3MP web cam and bluetooth as standard. The Aspire One had a respectable VGA, 0.3MP one.
Manufacturer refurbished has meant like new in my experience, my Aspire one is still going strong with no blemishes whatsoever and was actually a returned refurbished unit from dabs.
While 2Gb goes a long way to ensuring the netbook remains upgradable to the latest software, if you'd prefer the most recent Windows 7 then you should look at spending a bit more, but for lightweight computing why bother with Win7 when a number of independent developers are still catering for the vastly inferior (to WinXP) Windows 98.