Nope...was easy to learn. Well, setting it up was easy to learn. Takes some time to learn the differences in the tones. It's easy to learn what it can (and can't) do. I have a test garden but it will take a few years before it becomes really effective so in the mean time, pick an area in your yard (or at a public park) and thoroughly clean it out all the metal (probably a 3' square) and lay various coins AND jewelry down and run the coil over it...take notes.
Two, see how they read as you make adjustments to your machine (like running the sensitivity up and down, running the discrimination up and down, lower the thresh hold a bit positive and a bit negative)...raise the coil up to 6" to 10" and do it again. Don't forget to take notes!
Three, now lay down the coins (and borrowed jewelry) and do it again but place a pull tab next to it or on top of it...then try a metal washer or metal nut or nail. What kind of readings do you get? What happens when you turn up the discrimination? Hmmmmmmm! Interesting!!!!!!!!
At first, I'd run the first few times (at a park in an actual hunt) with NO DISC. Then I'd run it in the DISC mode maybe 1 mark above (to the right of) IRON...then 2 lines above IRON. AND DIG EVERTHING...that's how to learn it. If you're lucky, you'll learn what you need to know in only 100 hours.
You made a GREAT choice with the Vaquero! The Cibola is a great machine too but...what if this hobby really takes off for you and (through no fault of your own) you find yourself ADDICTED? Now you want to take your detector with you everywhere and you find that the soil is hot, or mineralized...you'll be glad you picked the Vaquero. It's a powerful (and deep) machine. Just to "cherry pick" you have to turn your sensitivity down a bit and turn your DISC knob all the way to the right for the pre-1982 pennies, dimes, quarters, 50 cent pieces, and silver dollars.
Save that clad too. It all adds up and you'll need FIRST (!) the Garrett Propointer and... your VAQ will buy anything else you need.