Hi John,
Let me list the F series detectors in order; F11, F2, F22, F4, F44, F5, F70, F75, F75LTD.
As you can see, the F44 is several steps below the F75 which is Fisher's flagship detector. So no, the F44 is not going to be as good as the F75. I'm not going to contrast the two units as you can download their manuals and contrast them yourself.
The F44 is a decent detector, though, and I like the feature set. I love being able to set the tones the way I want them. The best advice I could give someone on the F44 is to get the 7" concentric coil with it. That little coil is a great coil and isn't very expensive and I consider it a "must have" with the new F-22/F44 units. I like it on the Omega, too..
I have been wanting to write more about the F44 but just haven't made the time to do so. So much going on (my wife got a new hip for Christmas)
I'll try to put more in writting and share it when I get back online sometime Sunday.
HH
Mike