Comment by watwut

First thing that comes to my mind is that it is basically impossible to make it show you both sides of all the cards you are about to see for the first time today at the same time. So that you can actually try to learn it in more effective and less frustrating way then flashing cards on you in random order.

Second thing, control over workload should not be that hard. Anki requires too much tweaking to work reasonably.

Third thing, both old and new algorithm have a notion of "you are pressing the buttons wrong". If you are pressing the buttons wrong, you will end up with absurd intervals - like 4 months interval on something you just learned.