I have always used and loved my homemade goggles using the EVG920 and the ski goggle mod. I got tired of always being on a tethered so I bought a 5.8 rx module and "implanted" it into the ski goggles. I work well and I loved the freedom. In all honestly it looked like crap and eventually it stop working properly.
I then bought some FatShark Aviator 5G8. It was a whole new level. It was a system that looked nice and worked well. I am an avid user of the RVOSD system and found it was a little difficult to read the information in the far corners. If I adjusted the goggles, I could read the text but it made the other side blurry.
I was then offered the chance to use some FatShark Classics. The image was much sharper and the colors seemed not as bland as they seemed in the AE5G8. The goggle felt very sturdy and solid. Although I am not a fan of the rubber swim goggle type sun shield I found it worked well. The Eye Width Adjustment is much smoother then the Aviators. I did not like that there is no power switch. You have to remove the battery plug to turn them off. I have not used the head tracker so I have no Input on the functionally of it.
Overall, I wish I had tried FatShark sooner. The simplicity of a plug and play system while not being tethered is amazing. And having the reliability of the FatSharks makes the experience that much more enjoyable.