GQueues syncs directly with Google and is priced right. The features are rich and they just launched a new user interface.

The layout and ease of use. It's easy to learn.

GQueues allows me to stay highly organized and on top of all my shifting priority related activities. As a technologist, I have found the integration with Google Apps is far superior to any other apps I have tried. I particularly like the calendar and Gmail integration which is seemless and intuitive. As a project management consultant I find I am needing to track more things than most professionals, and GQueues enables me to do that while staying within the Google environment where my work typically resides.