Looks interesting. Looking forward to your in-depth write-up.
Sure

But pardon my english..
As we know Gametrix in games can be used in 2 modes - "sound mode" where we get less tactical informations but still the feelings are very strong and realistic,
more effective and informative "usb mode" using game telemetry through additional drivers and software.
There is also a massage function but because in my case the mat is adjacent to a reliable massage chair, excuse me but I will not to test it

So far, I've tested it on several sims and I will share my insights and impressions with you.
At the beginning for 2 hours I flew in Elite with HTC Vive hmd, isolating myself additionally with the Senheisser HD 800 headphones, mat set to "sound mode"
- it worked better than I expected, I didn't have to set anything, I got strong vibrations when jumping between systems, landing on pads, planets, etc.
Gametrix tactically and strongly vibrates when ships passing by, I can be dazzled by the sense of vibrations of the directions from which the enemy is flying. The front zone vibrates adequately when I shoots the MC- guns, lasers, torpedoes, etc., all fighting sounds intensify the impression resulting from the mat.
I missing only proper effects / vibrations when my ship hit asteroids or impacts on the ground.
IL2 BoS with additional DLC "Cuban" went to my the next fire!
Not only this game offers IMHO the best VR mode implementation with a detailed and diverse surface area (tops and hills) of all my flight sims . In addition, Gametrix in the "sound mode" offers us a really hot kick during the fight - I'm absolutely delighted with the impressions and FFB with 20 mm and 37 mm guns mounted on the fighters' deck. At first, a delicate drrrr , drrr and after starting the second pair of guns, the mat began to vibrate in a way that was impulsive and almost started dancing on it

Amazing !!
All my senses have been reshaped - playing, I felt that I was on the front of the WW II

The whirr of Spitfire V engines, felt hits by the enemy - all works!
Still testing the "USB mode" - which require additional software from Andre store ( SimShaker Wheels and SS for Wings)
So far tested Asseto Corsa and Dirt Rally almost 2 hours with Gematrix device.
Driving gives a lot of extra informations from mat - sliding, traversing, engines, acceleration, braking effect, impact to the surroundings etc.
Everything works - however, I noticed in Asseto Corsa that when too many effects are included at once, the impressions are less realistic and introduce too much FFB mess with my T500 RS wheel.
After turning off some options driving start to be really good. I can hotlap!
Dirt Rally with Gametrix I liked the best - in the rally the suspension working hard all the time combined with changing of gear give immediate imerssion improvement.
Some Cons:
- cables could be longer and come out from the bottom of the mat
not a bigger problem but I had to buy an additional 2 meters audio and USB cables
- no USB mode for ED and IL 2 BoS
In summary - I strongly recommend to all VR owners or multi monitors setups.
Gametrix gives you an extra "sense" after the image and audio we have very pleasant vibrations and cockpit feel
Playing yesterday more than 6 hours , for the first time in a long time I don't feel any fatigue resulting of my back pain.
And this is an additional attribute for me!
Below a few photos from my installation on the chair.
https://i.imgur.com/yohXXje.jpg
http://i.imgur.com/ujK71Dk.jpg
https://i.imgur.com/JmGaVzf.jpg