Rebecca S. wrote a review of Backcountry Access Essentials Package on December 28, 2012
Familiarity: I've used it once or twice and have initial impressions
I have only used my new avi gear a few times, but the batteries are already going bad. I think the first day I was out, the beacon showed I was at 73% by the end of the day and by the second day of use, it had gone down to 47 and then precipitously dropped to the 20s. I will be replacing the batteries ASAP and then, hopefully the beacon will function fine. So, I recommend testing the batteries in your kit before heading out in the backcountry!