[existentialmutt]

I'm not too impressed by this product's teaching method.

I mentally store keyboard shortcuts as an association between key combinations and behavior I see in my editor. The name for the behavior is secondary.

This product provides you with the name of a behavior and asks you to type the keyboard shortcut that performs it. So it's building associations between keys and names of behaviors, not the behaviors themselves. That's a big difference for me.

I imagine this product's method could work for some learning styles. For me, I prefer to practice and apply keyboard shortcuts in an environment where I can see their results (like the actual editor!)

[gms7777]

I agree. Using this tool alone won't make you effective at using the shortcuts.

I think it is a good first step though ,for people like me, who use VIM on a regular basis with a fairly limited vocabulary of shortcuts. To actively learn new shortcuts, I usually need to write them down somewhere next to the computer and then keep referencing them (especially when they are ones I don't use very often so they take a bit longer to memorize). Something like this is great because it will at least drill the shortcut into my head, so that while it won't become habitual to use it (and I'll need to make an effort to make it so) at least I'll be able to mentally reference it when I need it without having to look it up.