What is it about this machine that has such a broad appeal to so many all over the world. Its just a fun machine to use I think and very effective in all types of terrain. Its super light weight and can be used all day by most in total comfort. A large viewing screen with big vdi numbers that you can see with out glasses on. I have used it on Old Orchard beach in maine, Hampton beach in New Hampshire, Clearwater beach in florida and it hunts great anywhere once you set it up. The set up is super easy , Just find a clean piece of ground , noise cancel, auto ground balance, click on track adjust your sensitivity to the ground your hunting and then just enjoy the hobby. What other machine can you go to 3 different frequencys on the same machine by just switching coils? None! Some like to split hairs on depth that one machine will go 1/2 inch deeper than this one ---- soooo what. If in the event you ever have to send your xterra in for repairs , unlike other machines, you just take out a set screw pop off the brain box and thats all you have to send. No rods , handles , coils etc. If your the type that thinks buying the biggest and the baddest in a product line will insure success I think a xterra 70 would surprise you on how well it keeps up with the biggest and baddest! Most finds are usually in the first 6 inchs or less in the ground. I personnaly feel if you have a xterra 70 with a 3khz, 7.5 khz and a 18.75 khz coil you can hunt anywhere and have fun doing it and find just as much as anyone else can . To each his or her own. Remember its a hobby and not a competitive sport. have fun with it.