Their style is perfection.
Some of my favorite blog posts are their before and after projects.
I've not had experience reupholstering sofas or sewing throw pillows or revamping an entire bedroom set...but thanks to design*sponge I feel that it can be possible...someday. :-)
Here are some of my favorite after shots:
P.S. They also have great city guides. They have the 411 on cute shops, restaurants, and hang out spots in many cities in the US and abroad.