Unfortunately the impact is a detector im going to pass on, i love some of the features they have added and it sure sounds like it can hunt in mild ground.
But, Keith says in his report it's not as deep as the nokta relic in his ground, but close to an F75.
From that i read it's about the same as the Racer, which in my soil ran 3-4bars mineralization and died a death in depth performance.
I've got the new GM5+ which gives me easily 2.5inch more depth on most coins than the R2 did, and a very stable ID, with 8khz and 18khz.
For myself, hunting mainly ancient pastures, a detector has first and foremost to be able to go deep enough to reach the deep targets in my ground, all the 'bells and whistles' are secondary, because if it can't first get to the targets those 'bells and whistles' are going to be as much use as an ashtray on a motorbike!
Anyways, good luck with the machine, it certainly looks the part and should do well for anyone who found the R2 a winner in their ground.
Everyone's opinion here is valued.
I have run F75 both the older units and the newer.
There are a lot of places I hunt,,,where the Impact will outperform any of the F75 series detectors. So yes choosing a detector,,a person has to weigh factors involved with their style hunting,,their sites.
I think
I can say,,Nokta service in the USA has been very good. I don't know anything about the service provided by manufacturer of GM-5 detectors in the USA.