do i have to reserve a shutlle bus to pic me up at the airpot or not?
No. No reservation needed. You go outside the airport and look out for the shuttle bus with the hotel name on it. Just be sure you know the address of the hotel you are staying. Because if there are 3 hotels with the same name in the area you want to ask the driver first if they are going to the address where you made your hotel reservation. Each hotel has their own shuttle bus. Enjoy!
No - they run regularly from the hotel to the airport - its a bit crazy outside, but you just go kerbside at arrivals and the shuttle buses all slow down and look for passengers. Just make sure you get the right bus as there are different holiday inn shuttles for different areas of the city. The hotel name should be on the side - if you are not sure just check with the driver.
Get an answer from Holiday Inn Miami West - Airport Area staff and past guests.