[AT&T, Rogers HTC One X, Telstra One XL] BlueBliss:
Chiming in with my own little story...

I got my One X back in August. From day one, I've had constant signal issues and no service (very weird, repeated pattern of service cut-offs, actually). Couple that with a weak notification LED and a weakened vibrate alert (that eventually died), and you can see why I got frustrated. (FYI, the only thing I loved about my 1st HOX was the battery life; I had some amazing results with no tweaks... I'd use the phone for almost 36 hours without having to charge!)

I originally contacted HTC because my phone was bought off-contract; the company I once used to respect and admire has some serious, serious issues. It took them about 27 days (all documented) to actually START a ticket and look into my problem with the phone. My issue was "escalated" to their top-tier team, and I had to wait 11 (yes, eleven) days to receive a phone call from my "personal tech guru." Said guru was nothing more than a customer service rep who had absolutely no idea what I was talking about. He repeatedly told me that my signal issues, as well as the vibrate alert being weak/dying, were software problems. Anyway, he promised to call me back within 12 hours; it has been 15 days since that phone call, and I haven't received a single call/email/notification from HTC at all. Quietly Brilliant? Try "Brilliantly Quiet."

AT&T, to my surprise, actually pulled through and impressed me. I called them and explained my problems, and a 20 minute conversation led to the processing of a replacement for my HOX. I received the new one a couple of days ago. At first, I was beyond happy. The service issues were gone; the notification LED was much brighter and actually noticeable; the vibrate alert, while weaker than my 1st HOX, was working perfectly; and, the battery life was still great. But Now, I'm experiencing some issues again.

1. The signal issues are back. I'm getting repeated cut-offs, especially at nights, while on the 4G (non-LTE) network.

2. The vibrate alert is much weaker than my first HOX. While it is steady, and it works, I literally can't feel it vibrating in my pocket.

3. The battery life is HORRIBLE. I had a fully charged HOX at 8am this morning; the phone was at 11% at 1pm with only 44 minutes of screen time! I barely used the phone to text/browse the web, and most features were turned off.

4. While comparing the refurbished HOX to my new one, it is apparent that the replacement HOX's screen has faded colors (even after equal adjustments to brightness settings).

Anyway, I have faith in AT&T and hope they'll help me through this second debacle with the beloved HOX. I adore this phone; I only wish that the problems will go away, and that I can finally justify my decision to move to an Android phone (second time in two years).

Take care, guys. I'll keep you posted.

FYI, a little kindness and sincerity goes a long, long way with AT&T (providing you get a solid, non-International, knowledgable rep on the phone). I've been a hardcore hater and basher of the company, but I picked up the phone, got a kind rep, and kindly explained my problems to them, which led to my phone being replaced in 24 hours. On the flip side, my buddy tried the same exact thing with his off-contract GSIII, and he has been getting the runaround from AT&T for days.