Mears will stop at as many hotels as needed to drop off guests. Sometimes it can take a very long time to get to your hotel. That is why many people now prefer to take car services from the airport to WDW. They will be waiting for you at the luggage area and take you (and only your group) directly to your hotel. They will even stop at a grocery store along the way if you ask.
MUCH better experience than Mears.....IMO...........