When the Garrett Ace 250 first came out, it redefined what you could get at an approx. $200 price point. It quickly became a popular low end unit, and still is.
FTP-Fisher took this as a challenge, and our answer was the Fisher F2. Performance, features, ergonomics, it's just plain better than the Ace 250. I'm not saying that to knock the Ace, after all, the Ace worked then and still does, and since it got there first it probably still outsells the F2 by a wide margin.
Now I suppose there are some Garrett fans here who may want to defend the Ace 250. That's fine, it's a good product in its price category. This thread asks the question which is better. Usually things like that are "apples and oranges", but in the case of the F2 vs. the Ace 250, they're similarly priced intended to do the same sort of job for the same sort of customers. Comparison is fair dinkum.
I don't think any Garrett fans will argue that performance-wise the Ace 250 is the sort of product that wants to take on the F2.
I don't think any Garrett fans will argue that the Ace 250 ergonomics are superior to those of the F2.
I don't think any Garrett fans will argue that the Ace 250 features add up to more useful stuff than the features of the F2.
I don't think any Garrett fans will argue that the Ace 250 has a better warranty.
--Dave J.