Has anybody else had a completely horrid experience with google voice? I've consistently had a problem where a large percentage of text messages sent to my goog

Has anybody else had a completely horrid experience with google voice? I've consistently had a problem where a large percentage of text messages sent to my google voice number from AT&T customers simply don't show up. (either in the web interface or on a handset) This is a terrible problem as no indication is given to the sender that the message wasn't received. I requested help via their web forms and never got any response. Eventually I had to stop using my google voice number. Any other horror stories?