In the course of testing the beta release of Ubuntu 12.04, I decided to give the Ubuntu One cloud service another try. I'd used it briefly about a year ago, but hadn't found a compelling reason to keep on using it. I'm rethinking that.
I like that the Ubuntu One Music Store has moved back to Rhythmbox as the default music player (along with the removal of Tomboy Notes and Mono in the default installation). There are still a few stability bugs in the beta, but I trust they will be fixed by release time. I purchased an album through the Ubuntu One music store. I was able pay with PayPal and the process was easy.
The Ubuntu One feature that adds a lot of value and will probably keep me as an active user is the Ubuntu One Files app for Android. I use a Motorola Droid phone as an Android tablet. I installed the Ubuntu One Files app on the Droid and it automatically syncs any pictures I take with the phone to my Ubuntu One account, and my desktop computer, using wi-fi. Super useful feature, as now I can snap away with the phone camera and in a few minutes those photos are available on my desktop and available to easily edit or email to friends and family.
There is also an Ubuntu One music streaming app for $3.99 a month. I haven't tried that as I don't have the habit of listening to music on the go.
I'll keep writing about my experiences with Ubuntu One. I want to test the Windows client soon. Let me know if you have any questions that you would like me to answer.