In reply to frqnt: I'm just coming to the end of the NZ Avalanche 2 course which is the final avalanche qualification for ski guiding & ski patrol. (It's the last day today - hurrah!) There are 17 of us there so I've seen a reasonable range of transceivers in action this week. Around half the participants are using the Pulse and, in our transceiver test, one was used to post easily the fastest time - but also many of the worst times! There are a couple of Pieps DSPs in use (including by me) and a few Ortovoxes and a Tracker 1.
My impression is that all of the modern digital beacons do a very good job of finding a single burial. When it comes to multiples I'm very happy with the Pieps - the "Scan" function is very useful and the flagging works adequately. The Pulse seems to have some nice other features, like being able to see a list of how many units it is receiving and select between them. But I think to really use it well you need to be absolutely on top of understanding it - for example knowing that the calibration you carry out after changing batteries has to be done away from other electronics. And I've lost count of the number of people I've heard cure the Pulse for telling them to stand still during a search in recent weeks!
The Pieps doesn't seem to bring these complications so I remain content with mine, even for the relatively complex scenarios they give you in these assessments.
One other thing for users of transceivers in general - remember that the transceiver doesn't actually find the victim - that falls to the lowly probe. It's just as important to practice your probing skills - especially for deep burials.