I've used Mears several times and have been quite pleased with them each time. This last time, I was at the desk buying my ticket and the lady said a van was getting ready to pull out, so I should hurry. The other worker who was standing there ran out ahead of me to stop it, so I wouldn't have to wait for another van. The other times, I've waited no more than 20 minutes. And, actually, I kinda' enjoy the downtime. I use it to start enjoying the warm Florida weather and start thinking about my plans after I arrive. And I truly don't mind stops at any other hotels either. I like to see what else is out there and I love just seeing everything.
If you're in a real hurry to get to your resort, then I'd probably go with a towncar service. If you aren't, then I'd stick with Mears for just two people.