My Children thought it was great!
My children already have the sonic screwdriver that makes the sonic sound, so I got this as an alternative, and they love it! It's thinner and smaller than the other more popular one, but it gives off a really pleasing and very bright light that they thought was fun (and quiet) to use at bed time. (it isn't a pen). If you're expecting the sonic screwdriver with sound, I can appreciate that this would be a disappointment, but as a cheaper alternative, its great! We have had ours for about a month.