Make sure you get the 5.00 off coupon from their site. That dropped my round trip from MCO to SSR to 75.00 round trip.
I usually tip 10.00 each way. 8.00 would be sufficient but I find it easier to round up, and they usually deserve it. I have also tipped a couple of dollars extra when I made a grocery stop and the driver helped with all the bags when dropping me off.