The Ace 250 IS an entry level machine but because it does so much that the mid level and upper rage detectors do, people often discribe it as more than what it was marketed as. Yes, the Ace is an excellent machine but as many here have stated, the pinpointing takes some getting used to. It drove me crazy the first few weks out, but other people had NO problem pinpointing at all. That indicates that the end problem may be the used and his/her handeling the machine.
I use my MXT more now. Its considered a high end machine. The difference between the MXT and the Ace 250 is like night and day. The Ace ground balance is preset while I can adjust ground balance on my MXT. I have greater depth on the MXT, however, recently, a microwave wave dish and tower played havoc with my MXT it didn't seem to phase my Ace 250 at all, except for one time. I can prospect for gold with the MXT while the Ace is limited to the size of nugget it will pick up. It won't pick flower gold but the MXT will. The Ace wasn't intended as a prospecting machine, the MXT is a dual purpose machine and will pick up most gold. I have used the Ace and MXT in relic mode and prefer the MXT for that purpose. The VID seems more accurate. I have gone back over areas where I had used the Ace 250, with my MXT and picked up the coins I missed the first time, but keep in mind that may be because I didn't overlap properly when I was swinging the coil.
The Ace 250 is a good beginning machine and will do pretty much what most mid level and higher machine will do. The only difference really, in my opinion, is that the other machines have more bells and whistles. But do you need them? The 1350 has profiling. It can tell you if the taget is big and not worth digging, a real plus if your digging for coins. But I can tell if the target is big with my Ace 250.
If your new to this then by all means get the Ace 250. If you find that MDing isn't for you, you have not lost much money. Chances are you will grow out of the Ace at some point and want to try something else. You can always sell the Ace in a snap or keep it as a back up.
Regards
Robert R