Paul,
I think that NX5 is very decent camera, especially when you compare to it's price (which is realy, realy good now - you can buy it with kit lens and additional 50-200 in comparable price to the new best super zoom compacts or cheapest DSLR's (body or with kit lens)). It has some weak points - view finder size and resolution, LCD display type and resolution, continious shooting with CAF slow speed and maybe some more but it's build quality and ergonomics are very good as well as overall performance. For me the most important is picture quality and this is done by this camera very well.
Regards