Agreed about the quality. I upgraded from T3 E4 to T4 V4 last summer after about 5 years on the T3. The lever action is the largest difference. Very smooth, easy to pull action.
The fact that the brakes are so easy to take apart and work on with parts available for years and years will always be the greatest upside of the brakes besides how well they just keep working.
The video link for the brake bleed doesn’t go anywhere.