Well, all phones have their problems... and with a beast of a phone like this thing, you're going to some a good amount of problems, however the phone overall is a fantastic device and I love it to death!
To get it out of the way first of all, the is no MIUI ROM just yet for the Sensation, however there is most likely going to be a MIUI ROM before 2012 for us.
Rooting and S-OFF went smooth for me, it was fast and simple, I just followed the guide on XDA, and one on youtube.
As far as problems I have noticed;
1) At times, the screen can become a little bit touch sensitive, but does quickly fix itself.
2) The phone does get very hot, especially if using a ROM which is overclocked, and your playing an intense game. Maybe thinks this does cause what Im mentioning in Number 3/
3) The phone creaks when you squeeze the bottom. This can get fairly annoying at sometimes.
4) 2/10 games I download for my phone to play don't work on the sensation. They either make the phone look like it's been through a car was until you restart it, or the game works fine... but only covers 60% of the screen.
5) It's so light! You may like this, but it literaly feels like I could crush the phone with one hand, just squeezing it. To fix this, I recommend a sturdy case, and a high capacity battery.
6) Depending on how much you use your phone, either way the battery sucks. Im in high school, and I normally don't take my phone out of my backpack. It's at 100% when I put it in, then at 3 PM when I take it out Im at about maybe 60-75%, without ever touching it. If you're the person who is always on your phone, on calls, browsing the internet, gaming, etc, get a second battery, I recommend a 1900+ mAh Anker battery. You can find them on ebay for about $20 I believe. The stock battery is 1520 mAh, so the 1900+ mAh adds weight, plus much more charge!
In all, the phone does have a great amount of problems, I forgot to mention a few I'm sure, but don't focus on all the problems, the phone makes up for them. It's a truly fantastic device, and I would recommend it to any android lover!
Please Thank me if I helped!
