I am an avid MXT user, am on my third MXT since 2002, its a MXT Pro, I find the machine to be very adequate for my coin/jewelry hunting, using a combination of sound and vdi readings its a great jewelry machine. There are a lot of coils available to use on the MXT, I found that the 4.5dd Detech excellerator, 6"dd Detech excellerator, 5.3 eclipse and Detech 8x6 SEF are great coils for coin/jewelry hunting. As far as a nugget machine it does work decent, I run mine in Relic two tone for nuggets and it will get a 2 grain nugget down to around 2.5" deep with the 4.5DD the vdi is pretty useless in gold country. But its only a backup machine for me when nugget hunting. Overall I think its still a viable very versitile machine compared to the newest vlf machines on the market.