Many visitors arriving at Schiphol Airport might get a bad first impression of the country, because of unfriendly taxi drivers that might also overcharge. I live in Amsterdam and I use taxis a lot when I travel to and from Schiphol airport and I can give you this tip: use an Amsterdam taxi company called Ambassador Taxis. You can get info at their website
http://www.ambassadortaxiservices.nl . I am sure you will be satisfied as I always am. They have very helpful and friendly drivers. Their rates are very good. Don't take a chance with taxi's to and from Amsterdam or other places in Holland.