This is my 3rd machine and first Tesero .I took it right out and started detecting. Did no air test , just read the manual , watched some videos and took it right to the field . I am not intimidated by this unit. My last detector had so many functions and adjustments that I "never" felt comfortable using it. I just could not remember everything. With the Vaquero, Im in charge.I feel like I can get the max out of this machine without worrying about all the settings. More time digging less time tinkering.