How Long Should it Take To Grind my Beans with the HG1B Grinder?

We get a lot of questions about how long it takes to grind- this is a quick video we did for a customer who asked how long it should take to grind 30g of beans.  

It took us about 1:40 to grind on a very fine setting (good for espresso).  Let us know what you think and if you have other questions or things you'd like us to post, video-wise! Thanks!