Both!
He mentions that this chair is not as comfortable as many other chairs even after he added a cushion so he wouldn't feel wedged between the bottom seat panels. He also mentioned that it would take time to train your brain to decipher the information it was giving you.
For me both of those issues are deal breakers right off the bat. I have a very comfortable chair and when I added the NLRv3 there was no training period needed. Everything felt much more real to me immediately. I tweaked the settings to preference, but it was obvious what it was doing and in VR, it made all the difference in the world making me feel like I was there!
What I heard from this video was that this product is a new source of input that isn't obvious or natural. I understand that it is supposed to be giving you G forces and I'm sure it succeeds in a way, but color me very skeptical.
Actually its a terrible review, I have the seat but I was fortunate enough to receive Assetto Corsa profiles from my friend who received the seat a few weeks before me and spent a lot of times preparing profiles for different types of cars.
Looks like Shawn just did the autotune and set about his ways with testing the seat, and this will just not work. The "default" profiles are just too noisy, there is way too much output. Just a poor review and poor understanding of what to do. Not to offend, but when someone says and I paraphrase "the point of all these devices is to make us faster" I have no interest in hearing what that person has to say. The point of sim racing is to simulate, to the best of our ability, the act of driving a car.
His whole approach "having to reprogram your brain" is wrong right off the bat. You shouldn't need to reprogram anything at all. Things should be intuitive and this can be achieved by properly tuning the seat and setting the appropriate effects on either the bottom or back panels.
Think of the seat as an output device which through the Simcommander software can be fed a ton of information. First thing to do is kill most of the "effects" and start tuning things. Bumps are overdone on the default setup, bumps are the result of suspension travel and that can overwhelm the whole seat if you don't turn it down, smooth it out etc. But, I do agree with my friend when he says that the lateral G simulation alone is worth the seat. But without a doubt, straight out of the box with autotune there is too much going on, because they are feeding the seat too much telemetry forcing it to do things that maybe it shouldn't, or at the very least need to be turned way down, all of which you can do. For example, feeling bumps with the back paddles as well as the bottom just doesn't feel right, kill the bumps coming through the back paddles and things get much better.
The feeling of pulling lateral Gs in the corners is phenomenal, no motion sim can replicate this. I don't know what it is, but now I can really feel that pesky 911 about to do a 360 on me long before I get any cues from my steering wheel. You can feel the load transferring and the body loading up in a corner like a spring.
After 3 laps of Spa with this thing, I could never go back. Trying to drive with the seat off now just takes all the thrill out of it. You go from feeling (VR helps here) that you are actually in the car driving through corners to feeling that you are just sitting stationary.
I found myself not even thinking about the cues from the steering wheel but getting them from the seat instead.
You will need to create a few profiles for different types of cars based on the G they can pull unless you want the seat to pull max G (pressure/travel from the seat panels) in all cars, which would be very unrealistic because I've never ever felt the kind of G from a road car that this seat can pull on you.
Oh and get a harness, that really amplifies things.
But ultimately, like everything else, this needs hours of work to get right, that or getting lucky and getting some profiles from someone who knows what they are doing.