I should mention I was using Ubuntu Studio 14.04 tonight. I upgraded last night.
Over the weekend, I was visiting my in-laws and using Linux. On Sunday, I let it try to upgrade from v13 to v14. At one point I got a 'it's time to restart' window. I could see another progress bar, but I figured it might wait to continue until the re-boot. No such luck. ha ha. I restarted and killed the install.
But the beautiful thing was that it was so easy to recover. I just downloaded the latest version, formatted the partition and installed. I will say I do some breath holding as I format partitions using my work laptop. It hasn't gone wrong yet, but I'm always very careful not to format my work PC. :-)
I've been through 4 or 5 versions of Ubuntu Studio. I've been using Linux longer than that. I will say it's gotten easier. At first it helped to understand a thing called Jack which is like an internal Audio Router so you can route audio between applications inside Linux. Now, you really don't need to understand Jack. You just install. Start it. Open Ardour with your Class Compliant Interface plugged in and add tracks. you immediately see the meters bouncing. Arm for record, click record then play and you're off the to the races.
You don't have to install the DAW software separately from the OS. It's all one well integrated thing. Oh, and it does Video and Pictures too. You can watch Netflix. Movies on the DVD drive. Install any software you want. Surf the web. All the usual stuff.