So I've browsed reviews, checked out flickr photos, and seen neat stuff on adding the 250d and/or 500d close-up filters to do close up / macro photography, with the G1X. It sounds quite interesting to me. Are there any G1X users on here, and if so, do they have any thoughts on the camera, the quality of its photos, etc? I'm quite intrigued by the idea of such a big sensor in a format smaller and lighter than a full-on lens-changing DSLR.