We come from the north but always get off at the Kissimmee station. We have the station master call us a cab if one is not readily there, fares average around 38.00 one way. Whether train arrives on time or late the cab fare is the same.
Last trip, October, got stuck in the shut down of Amtrak due to hurricane Wilma. After 10 nights at the Poly, we switched to Pop Century to ride out the storm and resurrection of Amtrak. We ended up staying an additional 3 nights, Kissimmee station to all south Florida was closed to Amtrak and we had to reschudle our return tickets and board at the Orlando Train station. Cab fare from Pop Century to Orlando Amtrak station was 68.00. Big difference where you get off of train in cab fare. Seems trip to Orlando was over an hour on freeways and Kissimmee to WDW is about 30 minutes and seems quick. Hope this helps!