I agree that the available Sony Lenses leave something to be desired. I recently purchased a Leica M to NEX lens adapter and mounted a Voigtlander Ultron 28mm f/2 lens on my NEX-5 body. The IQ results with this lens is much better than the stock lenses. Once I got used to manual focus, I was able to consistently get tack sharp images with little degradation in the corners. The Voigtlander also yields very clean images with almost no signs of color fringing. I've taken well over 1000 photos with the camera and feel the NEX menu system and UI is easy to use. I don't really have a problem with it nor do I find it frustrating to use. You have to accept that the NEX is not an SLR nor does it have all the functionality of an SLR. I purchased it so that I had a smaller and lighter travel option. It's an added bonus that the image quality is on a par with my Canon DSLR when using the Voigtlander lens.