I find the GR frustrating to use at times but I take it everywhere with me and I love it when Im on trips because the images are so much better than a normal p&s. Life Size X-Wing Fighter by =Tom=, on Flickr
Yes, the GR does offer many opportunities since it's easy to bring anywhere and is always ready to capture the moment. Here's a couple from a business trip I was on. The GR joined in my laptop bag while the DSLR stayed at home.