I recommend that you search around this and other forums, and google around as well. Not all the reports about angies list have been favorable. Trade people have to pay for referrals, and do not like a lot of "lookie-loo" calls. I have read comments that some of the better people do not use the list anymore, because the cost/return did not work out.
I have no personal experience on either side of the equation, so this is just 3rd party feedback. Just do your research.