Among the drawbacks:
The (detailed) documentation (with the exception of the circuit diagram) rather poor. For example, any advertising for the device with the hotel mode is advertised in almost that makes a save the channel list on a USB Stick possible to edit it on a PC. How rankommt there, but Toshiba is silent, I have found the hidden key combination also not after a long search on the Internet. There are many different felt the same secret codes such as TVs models from Toshiba. Press "Mute" on the remote control, then press again and hold and simultaneously press the volume + button on the unit is only one of many that are not working.
The USB media player needs some time to load (2-3 sec), the operation is not very intuitive. For example, only the full user guide (which you have to download it first, the link to the website is available in the accompanying Quick Start Guide) documented how to play a number of songs and not just a ... (not the large Enter key, but a tiny play button!). What some symbols mean, I have not yet figured out, is probably a "repeat", which will only work when playing the song with "Enter" and not with "Play" ... being required further research ...
If one has once understood / found that usability should be but quite good, the quick response of the remote control makes up for a lot.
The photo player is of little use. It works, but needs about 2 seconds to load a picture. Short time by zapping a photo album can not. But who is already looking photos on their TV. I can not say, have not tried it over the USB Video Player.
Recording to USB or Timeshift there are not (or maybe and it's just not documented? I believe it is possible!)
When trying out the TV out of the box I have a test basis connected a small DVB-T antenna. Here I noticed that the sound and the picture were not synchronized, there was a significant difference of about 300 msec. Newscasts looked like bad soap operas dubbed. The problem occurs probably only in very poor reception level on, when connected to the cable network, the problem was gone. However, I want to point out this observation.
Conclusion: good overall package with some minor quirks. I recommend buying and would buy the TV itself again.