Ubuntu Touch on my M10 tablet is good for me. I use it for a minimum of 2 hours each day. My wife also uses it in preference to our laptop. Morph browser works fine. File Manager is really cool once you discover how to slide files right or left to reveal the hidden tools. System Settings and OpenStore are most reliable. You can roll your own webapps with Clickable or Webapp Creator. You can move files back and forth between your UT device and your Ubuntu laptop with WifiTransfer. Document Viewer and Sturm Reader handle pdfs smoothly.
I could go on. To close, I prefer Ubuntu Touch to Android. I wiped Android from my Nexus 4, installed UT and it's great.
In support of Android, many folk cite the availability of a plethora of apps. How many do you really need? Aren't many of them simply "shovelware"?
Oh, by the way the Community is knowledgeable and helpful.