One of the problems I have with Helium is knowing/deciding what to write about. The sheer variety of topics available is so daunting, and they seem to come a lot more from personal opinion/experience than other review sites. When I write for Ciao or Dooyoo its much easier to use the product I want to review, then look it up on the database. Helium seems to be the opposite - find a topic, then think and write about it.
I don't have the time or the patience to sit and go through every category until I find something appealing, so I generally just end up writing something mediocre on a topic that came up in the rating process.
How do you decide what to write about? Seen any categories that desperately need something adding lol?