Private transfer service; taxi, minibus or coach relieves the worry of lugging your case on and off public transport and having to change trains, buses. This can be pre-booked via the internet and a driver will meet you at the airport and take you straight to your destination.
The downside of this is that it can be quite expensive, for example some companies require that you pay per person; 4 people travelling with 4 pieces of luggage can cost around €365 return (approx €90 each). However, if you are in a large group then this cost reduces considerably. Costs are normally cal calculated either by vehicle size or per passenger.
Please ensure that you contact the private transfer company if your flight will be delayed or cancelled. In this situation you may still be required to pay for the private transfer.