We used Super shuttle on both of my last 2 trips, and I have no complaints. For the $ paid per person it was OK. Once we arrived, we went out the departure doors to the blue signs, and there was a super shuttle agent waiting there, it did take a while to leave to Airport, but considering where we were it was not bad. Could have used the Disney Shuttle, but the last bus leaves at 9 PM.
Also.. there are always coupon codes on-line, you can save 10% BLUEM is the current code and I just confirmed it works.