Me and my dad made the switch this year. He's not the greatest on learning new technology but figured the alpha out no problem. I like em, we can track each other as well. So far, I haven't had to use the trash breaker on it while hunting but have used it to train pups with. We went from the 320 with DC 50's to the alpha with the TT15. Great switch so far, and I was one of the few that really liked the 320 DC 50 combo package.
As far as range, we are getting about 1.5 miles out of the antenna on the hand held, but we also have an external antenna on our truck, and when plugged into that, we can get about 3.5 miles out of it. The Alpha also has a lot of other features on it that the 320 doesn't have either, such as marking perimeters, hunt times, sunset (basically a regular GPS Garmin would have). You can also text another hand held with it. It has something like 30 different messages you can send each other.
The 220 and 320 have hunt times and moon/sunset info
