Yep, I went from an F2 that I learned extremely well after 3 years and 1000+ hours and up to an F70.
I was aiming for an F75 but a fire sale deal on a brand new never used F70 passed my way and I went for it...best decision I ever made in this hobby.
I decided to stay in the Fisher family specifically because I understood the F2 language so well and hoped it would transfer over.
It did but there was just tons more to learn which I happily did to understand and utilize all the extra features, settings, power and abilities.
It dropped my jaw on my first hunt and found tiny silver, found gold on my fourth in extreme trash before I had a handle on all this extra power yet and now 3.5 years later my jaw has not rebounded yet.
For FTP to offer this same unit at $400 astounds me.
It is a big boy detector, make no mistake about that, not all the whistles and bells of the actual flagship but plenty enough to make you successful...even Dave J., the guy that designed both top end units, has said nobody ever has to think they are at a disadvantage if they swing an F70 instead of the F75 because they are based on the same core engine with similar abilities.
Mine has gone deeper in good soil than I could hardly believe, easily 10-12" and even up to 15"...and in the bad soil I hunt in now I am reaching areas that I never could before with anything and even past areas some friends I hunt with can reach with a few different detectors.
More importantly I am able to ID targets successfully in my devil dirt at deeper levels and recover them despite the severe masking that goes on around here that has kept them hidden for so long in totally scoured public sites.
Extreme trash, severe iron, mineralized soil, massive EMI...there is no site I have come across yet that it couldn't conquer with the right settings.
A ton of great coils will work on these things, both DD and concentric, and I use both kinds to my advantage.
They are not exactly perfect for everybody, tons have tried them and turned them up too high, set them wrong for challenging sites or just didn't get along with them for some other reason that was no fault of their own and moved on but for those of us that love them, learned that descriptive language to deep levels and spent the time to harness its abilities we bless the day these fine tools came into our lives.
I do on every hunt, anyway.
Some click with certain brands or tools while others never do, that is life in this hobby.
For those of us that did with these, and I am talking about the entire platform consisting of the F70/F75/T2 and now the Patriot, check the forums for who uses these and what is being said about them and what we find.
We are rabid and we are many.
