Like all systems, the Lenovo ThinkPad Yoga 12 is not perfect. There are things that can be improved. Below is a list of complaints that I currently have about the system.
[update: I found that the fan is not running, and therefore no cooling is taking place, click here for more info]
laptop cooling pads. Otherwise you are guaranteeing a shorter life on the system.
The fan is broken, so the above numbers are what a broken fan system will show. Ideal temperatures are usually less than 70 degrees Celsius.
This is the Yoga 12 with an external cooling fan blowing air into it. It looks like I'll have to ship this unit for repairs.
Perhaps this vent design is not enough to provide sufficient air flow--at least for when the device needs to perform intensive tasks.
The Screen and Bezel is Not Completely Flush
Even though the X230T is a bulky device the screen bezel was completely flushed. The Yoga 12 has a raised bezel area on the side of the hinges--which can be somewhat annoying. Resting your palm on this bump is not as pleasant as if it was flushed. It's possible though to simply rotate the system and then the bump is out of the way.
Flexing in Bezel Area Near Windows Home Button
The Thin and Limited Digitizer
The thin digitizer is not comfortable to hold, and has a single near flushed side button (which is not easy to identify). Something better would be thicker, and have two buttons. In a way I understand why the pen is so thin, it must fit into the Yoga 12's already thin body. For those interested in an alternative I suggest something like the Fujitsu LifeBook Digitizer. So, while this pen is fine as an emergency digitizer it is unlikely to be a primary digitizer.
The Tiny Right Side Keyboard Buttons
Notice on the image above that the left side Fn, Ctrl, Windows, and Alt keys are nicely sized. The same cannot be said about the right side keys. The right side ones are smaller in comparison. If you have thicker fingers then these keys are likely going to be harder to manipulate. The X230T had better sized keys. I think they could have moved the PrtSc button to serve as one of the action/function buttons, and then that would allow Alt and Ctrl to be closer to their appropriate size. The directional keys are also quite tiny, which could be improved in future versions of the system.