These are the best bluetooth headphones I have owned.  I don't like using them for phone calls however.  I have not had the same issue with breakage and I am quite rough with mine.  I use them all the time in the gym and have had no issues with wetness causing problems.  I wear mine for about two hours at a time and they don't get heavy for me and I have small ears.  I use mine with a Verizon VX8550 Chocolate and get VERY good base and no hissing or popping.  I also use it with an HP 110 classic pocket pc.  BUT:  On the PPC, you have to go into the registry and change the bluetooth settings or you will get popping and hissing (google WM6 crackling).  Once you do that, these phones produce great base and treble with no hissing or popping.  Also recommend for PPC users the SRS WOW plugin (google it).