Titan 3000DX by Bounty Hunter

I have just ordered a Titan 3000DX with the larger 10" coil as an option.
Hanging out for its delivery.

The radio shack 3300 seems to be an earlier version of the Titan

Not a lot of Information on the Titan 300DX on the net and I wonder if any one has had any experience with it.
I see the specs on the Fisher F4 are the same apart from the coils.

Would be most interested to hear any comments.