I clear 30's for beginners. You will find little to no issues.
you will probably run into some kind of flooding, leaking, burnt taste type of problem with a protank so unless you know how to fix these issues, I'd stick with the iclear 30s.
I use my iclear 30's on the days I feel lazy because I know I won't have any troubles with it. The only thing I don't like on it is the air flow. It's too damn tight. But that could be a good thing for some people.