I have a Whites Bullseye. I used it until i bought a Garrett ProPointer. The Bullseye is not rugged at all in my opinion and the sensitivity is nearly useless. The guy I bought it from showed me how to 'adjust' the sensitivity by cranking the knob all the way up, then backing it off just until it stops squealing. However, bump it and it goes off again. By the time you get it set to an obedient silence, the knob is nearly 3/4 of the way 'off'. Anyway, an air test shows it to have scarcely only an inch or so of detection field. I had a lot of trouble getting right to my targets after digging the plug, whereas the ProPointer nearly hollers before you get it in the hole. Hmmm, the worst thing about it really, is what I paid for it. :P Nonetheless, I had just started detecting then and was itching to get a pinpointer, so it was out of haste and convenience that I purchased it. Please forgive my response, I am not trying to be a creep, just saying that it did not work for me. If it does for others, that is all that matters. The guy I bought it from is a senior man and White's rep here in town, he is extremely kind and helpful. Some of the White's machines he showcased did look enticing to me, so, just saying that I am not 100% biased on everything in one brand just because I didn't like one of their items. Again, if it works for others, no problem. I think White's could improve on the chassis and sensitivity of their model though, then they'd have a winner.