I personally believe you will be happy with that X Terra Pro. Never owned a Quest but have owned White's, Garrett, Fisher, Minelab, Teknetics, Nokta, and even junker bounty hunters and Radio Shack Detectors. The Minelabs cost more than they should but they get it done. And they will take care of the customer. The same can be said of Nokta as well. Garrett used to have good support too but been many years since I had one.