I have been happy with the fit and sound quality of my T1s since I got them in Dec of 2011, but I am more than a bit disappointed in their reliability.
I just had mine returned back to me to have them completely rebuilt for the 2nd time after purchasing them. In December of 2012, I returned them after the right channel completely failed. It took a month to get them back, but I got a new pair to open 2013. Well they failed again in July, this time, the left channel went.
I take good care of these, but I do use them daily on my commute on local public transportation. But I don't abuse them or work out with them, so there's no sweating or extraordinary wear on them, just normal use. This time, it took almost six weeks to get them back, and the local Jaben outlet charged me SG$360 (about US$288) to get them back. I am disappointed that if this was an "out of warranty" repair, there was zero communication to that effect, either from Jaben Singapore or ACS. I was just told to pick them up and then presented with a bill once I got there. I am also disappointed that I had barely 6 months between failures. If I was misusing these, sure I can see me being charged for the work done, but this seems to be a workmanship failure on their part, plain and simple.
I've written to ACS to get their side, but gotten no response so far. All in all, this was a really bad experience and if you're considering getting T1s as a CIEM, be very cautious with them and understand what you're getting into.
Can't say that I will use these much any more, if their working life is so short. And unless there is some kind of response or compromise with ACS and Jaben, I won't have these repaired if/when they break again.
Drop a PM to ACS Adam (Adam Rhodes from ACS USA) and see what he can do for you.
Edited by longbowbbs - 9/11/13 at 4:08am