I can report that it really does work. I feel much more centered. I also find it much easier to let go of things bothering me whether they are insignificant or significant.
Interestingly i find it less necessary to talk all the time. Which i guess is a significant change since i usually suffer from word diarrhoea. Sadly in the past i have found that the more you say, the less people seem to listen.
Admittedly it has been difficult finding that place where i am not focusing on problems in my life, or reflecting upon scenarios that have happened- and once it has been found it is almost impossible to maintain for any impressive length of time.
Gradually the results are seeping through and they are positive! So if you haven't given it a go- try it out for two weeks. Silence does equal happiness.