Ever since the advertisement for the Q came out on TV, I have been floored by its sleek and stylish design. I was waiting for my "get one every two" deal and when the time came, without hesitation I upgraded my phone to a black Q. The keys are large enough to comfortably type and the colors and sharpness of text were very aesthetically pleasing. Since I had built smartphone apps for a previous generation of the phone, naturally I gravitated to the Windows Mobile based device. Also, since this is a windows based device, I didn't have to read the manual (except for advanced features) to figure out how to use the device. Setting up eMail was a breeze and integration with Outlook was very cool with meeting reminders popping up on time, very conveniently.My honeymoon period with this phone was over rather quickly. One of the first things I did was to enter contacts from my old phone. Scrolling through the options for every contact revealed the slowness of the contact app. Selecting ringtones also had the same drawback - it took a noticeable amount of time to scroll through the ringtones before they would play the tune for preview. It was annoying to watch the field selector jump back and forth as the wheel was rotated, with each field painting itself slowly. Occasionally, when looking at a list view, the screen would draw blank but when you roll the wheel, items in selection would selectively paint themselves.Secondly, in the three weeks I had the device, it hung twice while making outgoing phone calls and once as I was browsing the web. On the first two occasions, I had to turn off phone and back on to get it usable again. It was like rebooting a Windows 95 device when it hung or bluescreened. This is a cell phone and I expect its uptime to be measured in months, not days. On the second occasion, gwes.exe crashed and I was asked whether the phone can send the error message to Microsoft, just like the promts on Windows XP when something goes awry. Again, I expect this device to behave like a phone, not like a desktop.The final straw was the battery life. You could see the battery draining in front of your eyes. That is how short the battery lasted. About a day of use with a couple of short phone calls and lots of email. It was constantly being charged when not in my hands. The power management setting that I selected (5 seconds for backlight to dim and 15 seconds for display to turn off) never persisted. It would temporarily be effective and then it would go back to a standard setting (5 seconds for display to turn off). This meant I had to constantly wake up the device if I was reading a page of eMail.I finally got fed up and exchanged this for a blackberry. While the latter looks and feels like a brick, it has been rock solid. Research in Motion got its device designed quite right and I feel Motorola and Microsoft failed to capitalize on a beautiful device design with the Q. I give this a 2 star for device design and intuitive ease of use.