I still think it's too early to tell. We need to see it in action and experience it for at least 1 season to fully evaluate.

There are a few things that are 100% positive: being able to burn useless extra copies (or cards that you never use) for Glint, especially because it appears that to unlock soulbound cards you'll need to pay about 18x of the CP - making them effectively soulbound forever; no more useless potions in rewards; and you can target what you specifically want to get, at least more than before.