Decent, if you need to get work done.
I was hesitant at first to give this a try but when I was stuck away from the office it really helped me manage my tickets (and my team) while I was away. I wouldnt use this primarily, as I would still use the desktop/web app to manage my tickets, but still great to have on my phone for when I need to get something done on-the-go.
FaultyFlipFlap about
Zendesk, v2.1.11