This is about as close to an on-line training seminar as it gets...... and it is free. It is up to the user to do the fine tuning for THEIR ground, targets, hunting style and swing speed. Basic set-up is pretty easy with a test garden and spending a couple of hours to see what works best for YOU in YOUR ground. We can't help you with that because we don't know your ground and style. There are only a half dozen adjustments that really affects the depth, everything else are personal preferences. It is not really that hard to learn the V3i. I think the DFX was harder to master than the V3i.
The right customer for the V3i is someone who WANTS the unlimited adjustability and the ability to develop a custom made detector just for him/her. If this is not your primary reason to buy the V3i then maybe the VX3 or even the MXT Pro would be a better choice for you. Although the V3i works very well right out of the box for most users, the V3i IS the most advanced metal detector ever made. To get the most from it, plan on spending some time with it.