There are numerous great reviews for this unit and it lives up to those great reviews. The unit itself is nearly perfect. The microphone stand is not perfect, but it does the job well enough. The several options with regards to the stand to make it easy to take random measurements for RoomPerfect. This unit has the HDMI module, but not the USB input. I used a Wyred 4 Sound uLink (USB to Coaxial/BNC adapter) which works great and I will include at my asking price.