It's so...
- Simple - just music and screen grabs
- To the point - shows you exactly how you'd use the product... quickly!
- Not boring - the video is clear, the music is apt, and it gets you thinking of what you can do with the product even though there's no voice telling you about it
I can't tell you how many times I've watched a video of some poor guy typing out what he'd be narrating annoyingly slow and having to go back and fix typos every other second either with no sound or the most irritating music one could find laid over a blurry video so that you can barely read what's being written anyway. Every time I see one of those, I wish they'd have just done exactly what the video for Tinmark does. It can't be that hard. (It actually isn't, I've done it once for another product).
Oh, and I love the idea of making this free. It's cheap as it is and making accounts read-only after 30-days, at least to me, seems like it'd convert really well. If you invest enough time in the product during those 30 days then it's not a big leap to go from $0 to $2 for the ability to edit again.