This makes it easier to figure out what to do with the program, and the sleeker and more professional-looking graphics makes me wonder about how they are demonstrating they want to break into the big leagues. Good for them! They have a simple product and do not make us users jump through all sorts of hoops to use it. Simple account set-up, easy-to-edit scheduling, and few ads. All around, a nice service to use. I have found Doodle even easy to use with technology newbies, which is often an audience with which I directly work.
They are a model for how Web firms should focus on their core competency and perfect what they begin before they expand into trying to do everything.