First of all, I am not "looking for flaws" or "shaking my phone to hear something rattling". The phone shakes itself when vibrate is on. I guess it's selfish of me to want to use the vibrate feature. Regarding the speaker holes: In one day, I have missed several calls with the phone in my shirt pocket and the ringer on max. This is not acceptable. I work in a machine shop and ambient noise is out of my control. I never had a single problem hearing my Galaxy S2 ringer. This is what brought me to this forum. Thanks for all the valuable advice such as "stop complaining", "enjoy the phone, it's perfectly usable". It may be perfectly usable for you. You must work in a quiet environment.
I guess my big question is: Is there actually a fix for the low volume issue? I can live with the rattling buttons, but I can't continue to miss calls. If Google has effectively addresed this issue, I will RMA it. If not, I will return it and shop for a different phone.