Hi there. Yes there's polaris office which allows you to edit/create office documents but it cannot save to the newer docx,pptx format for instance..most 3rd party office applications cannot do this either. Also the formatting may be different, again this is similar to other 3rd party office apps - nothing you can do about it.

In terms of whether we are satisfied with the TF, I can say that pretty much most of us are satisfied, including myself. Its worth buying if you buy it with the dock. There's no USB port on the tablet - you are correct on this, only on the dock. IF you want just the tablet and want a usb port on it, you can look for Acer Iconia Tab A500 but mind you the screen for that tablet is a TFT while TF is an IPS panel like iPad 1 and iPad 2.

Battery life is pretty good, with the dock you can achieve about 16 hrs approximately. Without the dock I think about 7-8 hours probably? Depending on your usage of course.

yes here's a simple list of stuff to check:

1) Light bleed, most visible in highest brightness setting, middle bottom area where the charging port is for the tablet. Most people have light bleed in this area and i'm getting used to it. If other areas of the tablet has light bleed, request for another one and refuse to take it. If its just at the middle bottom area, then i guess its up to you whether to take, but most likely almost every other unit have this light bleed issue.
2) If you're buying the dock, test it out, make sure you can dock the transformer and the dock together. The latch should move from left all the way to the right, cannot be inbetween whatsoever. Some pressure is needed to push/press the tablet towards the dock, this is normal. If after you put pressure and the latch still doesnt go all the way to the right side, request a new dock, refuse to take the unit they offer.
3) Test out the keyboard dock keys, press all of them in polaris office, make sure all the keys register properly. Also test out the touchpad make sure it is ok when moving the mouse cursor on the screen and also the left and right clicks register. Left click is to launch an app or perform an operation such as button clicks like in windows and right click functions as a back button / back key in Android (not like in windows where the context menu usually appears).
4) Bring along these items if you have to test the connectivity options -> USB external mouse (for dock), USB pendrive, SD Card, MicroSD card. Use them to test out the various ports on the tablet and the dock. Tablet only have microsd and mini hdmi port, so you can bring a microsd card to test if you're buying the dock only. Mini HDMI you can only test at home unless you can test it somewhere that has a tv and you also need a mini hdmi -> hdmi output cable.
5) Test the speakers, try to see if you can listen carefully whether the left and right side speakers are balanced and not louder for one of them compared to the other (i.e: left louder than right or vice versa). Several forummers here have this issue (but I don't). So test that out. Also bring an earphone if you have, to test out the earphone jack too.

That's pretty much all I can remember on the top off my head. Regarding the warranty as i know asus malaysia is giving international warranty. Good luck

don't hope, they hardly read here 

with that method, u could have just flashed ur tab to a custom rom, those are already rooted...

before AND after