If you go to the minelab section, I have a few reviews/impressions of the 505. I have found literally hundreds of coins at a school that I had thought I cleaned out with my Vaq. With the 505 you can run all metal and still have all the ID#s and know what's in the ground, rather than disc'ing out targets and masking other targets out along with it. I like to hear/see everything under the coil and then decide what to dig based on that. I have a pretty good idea now of what's in the ground before I dig. With my beep and dig no matter how often I 'thumbed the disc' I still rarely knew if it was iron trash, or a dime/quarter until I dug it. Even with only a 3 year warranty, I would buy another X Terra if mine were to break. After spending so much on my V & not being satisfied, I learned something: Don't buy a product because it has a lifetime warranty, it will do nothing for you if you aren't happy with the performance of said product. Lost over $200 when I sold my V.
