There were occasions when I used Mears, they put us in a van instead of a bus. There were just two families in the van. So we did not wait for very long and we didn't go to multiple resorts. I don't know if they still do this and it probably just depends on your luck. Uber is at least twice the cost of Mears for one person, so OP just needs to decide if the money is worth for the convenience of less wait.