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It appears that opinions are about the same as when you asked this question in April Anthony. I'm still very happy with mine since I upgraded from a G10 early this spring. If you like the ergonomics of the G10, the G1X will be much the same with noticeably better IQ at low ISO and much better high ISO ability. I find my G1X lower ISO images to have a bit less noise than my 7D images (they have the same pixel pitch sensors).
I think Canon has done an amazing job of fitting a compact lens to the nearly APS C sensor size. But still this comes with a price. P&S level close focus requires an external diopter filter and the lens element travel during AF affects AF speed. To me it seems about the same as G10 AF speed and faster than live view AF on my DSLRs. I've had no problem with low light AF and I'm willing to use the G1X in much lower lighting conditions than I would with previous Gs. ISO 800 is completely useable and ISO 1600 cleans up nicely.
The articulating LCD is a nice upgrade from the G10, I missed that from my earlier Gs. I much prefer the front element mounted filter adaptor to the previous G's body mounted tube. It makes the camera more compact when turned off and the filters are much simpler to store off the camera. Get two adaptors from Lensmate, one for your polarizer and one for your close-up adaptor. I bought a neoprene sunglases pouch that holds the two filters nicely. I have both the Canon 500D (2 diopter) and 250D (4 diopter) close-up filters and they produce beautiful images. For the flower shots I like to take, the 250D seems a bit too strong so I may also try the Hoya two element 3 diopter filter.
I'd never have this as my only camera, but as a 1 1/4 lb complete camera system its sure a nice complement to my DSLRs. I don't feel like I have to sacrifice much in the way of IQ to carry a smaller package.
I'll add that the underwater housing is considerably larger than the G10 housing. It has a longer lens travel to accommodate. This may be a consideration when packing light for a tropical destination. Still 1080 underwater movies are a possibility for me now.