This is my first Android phone. I've always used Windows Mobile. Sense was initially developed to try and make WM more user friendly and it was a great success. I actually liked some things about the earlier WM version of Sense. But I have not gotten very far into Android or the cloud yet so maybe I'm just used to the earlier versions. I was amazed at how quickly Android was advancing but it is still not as well integrated into MS Outlook/Exchange IMHO.