I've been using a Sony NEx for the last year or so and I've been very happy with it. I've never had the need for a full DSLR, but have been unhappy with the image quality of most of the P&S cameras I have owned. The NEX seems to be a good compromise.

Most of the photos in this gallery were taken with my NEX:
http://www.hikinggeek.com/2013/12/31/best-photos-2013/
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