HTC One S (gradient blue, T-Mobile)

Pros: Beautiful screen
Sleek design (though a little big, at times need to use both hands to navigate, and I have big hands.)
User friendly
Fast processor, no delays navigating the phone.

Cons: 4-7 times a day network connection freezes, unable to make calls. After a minute or so network disconnects and reconnects. Happens on 4G, 2G, 1-5 bars of signal strength, etc...
Wifi reception poor.
Short battery life

Summary: I submitted review below at T-mobile's website. It was censored, so I am posting it here.

T-Mobile customer for 9 years. Had this phone for 1 week. Compared to my previous MyTouch 3G here are my findings:

1. IF YOU HAVE WEAK WIFI SIGNAL FORGET THIS PHONE. My previous phone worked in my office, where we have very weak signal. This one does not even pick up the network, let alone connect to it.

2. MAJOR NETWORK PROBLEMS. This might not be phone related but tmobile network related. However, problem did not happen with previous phone, and customer rep could not rule out problem with phone (see below). Essentially, 4G network freezes up, internet stops loading, and phone reports problem with network connection. Network switches off automatically and comes back on. This happens 4-7 times a day, irrespective of signal strength (e.g. number of bars). Customer rep told me they have a 4G "delay" problem, and they are working on software patch, but it should not be switching off. Had to do factory reinstall. Will see what happens.

3. BATTERY If you plan to read blogs on the train on way to work; check out emails during coffee break, lunch and tea, then power it up at the desk or count on your battery running out before getting home. Pretty screen will eat up your battery in a flash. I hate to thing what battery life will be in a year after some wear -- and you cannot replace the battery....

4. FEW SMILEYS Silly comment, but if you use Google chat and are used to having access to a 12 or so smileys off the keyboard (as in previous phone), here you'll get 4-5.

5. APP BLOAT T-mobile loaded, impossible to uninstall.

6. START UP JINGLE When you start phone you get a quiet HTC welcome screen, about serenity and all that, then you get a t-mobile welcome screen with a droid robot firing off into space with a loud jingle. Makes you look stupid if in the middle of a business meeting. I suppose t-Mobile CEO is not using this phone, or he'll be embarrassed. Did they have an intern do this?

Updated on May 9, 2012

BTW a day after factory re-install, problem remains. Network has frozen three times today. The last time it would not even reconnect automatically, nor manually. Had to reset access points.

Updated on Jun 25, 2012

Finally had to ship in phone for replacement. The new phone works fine so far, though the wi-fi keeps on loosing the connection despite sitting right next to the router.

Also, despite multiple assurances from T-mobile that my unlimited data plan would stay unchanged, I did loose the ability to tether the phone for free. With the new model I am asked to pay an additional $10 per month or so to access this feature.

Customer rep says this is too bad, that tethering was never part of the old service, but a mistake from T-mobile. They've now corrected that problem and I will have to pay for it.

That is not what i was led to expect when multiple reps assured me that upgrading the phone would in no way affect my rate plan and level or service. I will send formal complaint to BBB.