Every CBD article from peers or the CBD market includes CVSI as a pure play.
CBD is the same molecule for all parties but the production process, safety, QUALITY, consistency and finally efficacy (data already available) separates the leaders from the rest. This will weight enormously when talking to the FDM players.
After safety, quality is the most important for me, because quantity everybody needs to adjust to his/her weight, genetics and personal needs. CBD does not work by volume , ie the more the better. CBD's main task is to support the ECS, that's it. CBD assists with other needs but having a well toned ECS is the main objective. For this, the daily dosage for each person is unique. It needs a personal study like yours. The brand needs to guarantee the consistency (mg/dose), that's all.
But in QUALITY lies the effectiveness. You can try two brands with the same dosage and you will probably get different results because of the way they were made. CVSI is a pioneer and it still doesn't know the complete list of compounds (more than 500 hundred) and their respective concentration. But the company is respecting nature as much as possible by trying to keep the product as natural as possible, hence the high effectiveness.