I have been familiar with the Garrett line since the late 60(s).
The ace 250 is without a doubt one of their best efforts. This being one of their most reasonable they have produced.
I got to use one on a club hunt and it beat my 350 out for targeting and weight. There is a side to them that some men may find offensive it being yellow and all, but it can be seen for quite a ways.
Women may find it attractive though. That little yellow fellow

is showing up at more and more hunts!
If you decide on a 250 you may have to wait on it there is quite a demand for them. That is unless your distributor has them in stock. I think that as unlikely.
Good luck on your next machine.
Out4gold