I find taking the MTL Bus and Transfer (Translado) an inexpensive and safe mode. Always use them and never an issue even with late evening arrivals. Once your bags are Xrayed on arrivals you will go throught a door into a smaller room with counters for ground services (MTL has a counter there). Let them know your final address and request the Bus/Transfer Option. They will give you a 2 part ticket. One is for the bus to Retiro and the other from there to your Hotel/Final Destination. It's important to have that 2 part ticket as they don't sell the final leg once your at the Retiro Station. Should be about $13 USD all in. You get on the bus and give bags to the man checking them in (hold onto your bag claim receipt) Once at Retiro claim your bags and then there will be some men with clipboards or go to the desk inside (they will ask for your final address) and there are several remise there to take you to your final destination (they wil group you into 2/3/4 passengers per car) and then route you all collectively to your respective destinations. The Remise drivers know the city like a book, drive well and load your addresses into a GPS to make the route for all drop offs.. I normally get to Palermo Viejo within 20 minutes after arrival in Retiro. Safe Travels and they will pick you up for the ride back to EZE if you make a reservation a day in advance.. Credit Cards taken as well with ease..