I like how easy it is to use, especially for newbies who are just getting started with Google Maps. It has all of your basic features such as directions, traffic reports, etc., but also allows you to create custom searches when needed. The only thing that could be improved would be if there were more options within each category (e.g. restaurants). Also, sometimes it takes awhile before results come up after searching.
However, this can usually be fixed by refreshing or reloading the page…