its better then the f2 but it has been replaced by the 505 model I believe the 505 retails for about $550. I personally wouldnt pay more then 250 for it unless it includes extra coils. But 300 is almost 50% off
BTW it has no warrantry and if something should go wrong the repair plus what you paid for it could equal the cost of a new 505
Call New England detectors and see what you can get a new 505 for then decide for yourself dont forget to mention this forum
For $300 you can do better. That Xterra, while it's a great machine and all, is still old, and the new 505 has seen some deffinate improvements.
In all honesty, I have an F2, and I'd take any Xterra over it for nearly the same money. If the seller will go $200 to $225 tops I'd be giving it serious consideration.
Just add another hundred or 2 & you can get a good used etrac, theres several that sold in the 800 dollar range in the ebay completed section, or just wait a few more months & get one for what you want to spend.. If you want a new machine get the At-Pro...