G1X doubts at Trusted Reviews

...advantages of this larger sensor are immediately clear to overall image quality, with the G1 X offering class-leading performance in this respect. However, in other areas the G1 X lets itself down somewhat with sluggish operation and niggly performance issues. Image quality purists may well be willing to forgive these flaws, however anyone in the market for a snappy advanced compact with quickfire operation may well be slightly disappointed.

http://www.trustedreviews.com/canon-powershot-g1x_Digital-Camera_review