I'm actually in my first month as a paying subscriber. I've tried their 100 queries trial and was pretty happy with the results. However, with my current search profile I definitely need the $10 subsription, if not more. I'm honestly not sure their new pricing model makes sense at all. It seems way to expensive for the average person or poweruser alike.
I'll decide whether I stay a customer after this month, when I have a better impression of all the features and shortcomings of the service.