One thing I found when I started using the GR Digital is that it opened up a whole new world of possibilities to me. As someone who had moved from an ETRS medium format system, through to MF rangefinders and then ending up with the Canon 5D, the GR-D is a joy to use as it can be taken anywhere and it allows you to shoot things that would actually be impossible with a bigger camera. The quality of the pictures is fine up to about 11x14 and even beyond. Some people are printing huge prints from the GR-D. For example see the discussion here.
Using the GR-D also opened up my eyes to doing other things with a camera than just trying to shoot fantastically sharp photos with no grain. In fact I have hardly used my Canon since. I have also begun to use toy cameras and old vintage folding medium format cameras that can be had off ebay for few dollars. I have started another blog about this experience here. If you are interested in toy cameras and vintage cameras check it out sometime.
These were taken with a plastic $20 modified Holga camera:
Potted Plant

Garden Hose







