I have used the refurb ones on a $15 per month plan, no contract. Cancel anytime which I have as I am not going anywhere for the near future.
Pros -
Cheap outlay initially
Easy to use not complicated, enter number and ring
Local call costs for people ringing you (I would ring home hang up after 3 rings, they would ring me back at local call costs)
Robust unit
Clear voice and very little delay sounded just like normal phone (except when no service see below)
Swivel antennae use left or right side
Good battery life
Cons -
Even slight cloud did cause some times when reception was difficult to achieve, would drop out for a few seconds and then reconnect, not all times did it disconnect?
Heavy clouds were an issue with no recpetion for extended periods, one night was not able to make contact. Potentially causing some concern to some people.
Check satellite locations as they can be low on horizon
Bulky but really not a big issue
I don't know if the technology is a little old and this was causing some issues with the connections, but if it was an emergency we could have had some issues. I would be keen to know if newer phone users experience any of the above or I can call it on the technology?
If it is just general communications and keeping in touch I see no issues except for some frustrations at times. However for an emergency I believe a PLB is definitely your best friend in this situation.
Hope that helps a little
This was in WA as well.