Amazing that such Ann inexpensive tool has worked so well for us for many years and frequent use! If you have lots of shelves, pictures, etc. to hang, but don't want to blow your do-it-yourself budget, you've found your stud!
This finder is simple but sturdy. I've dropped it plenty of times and it hasn't phased it. I'm sure some jobs require more bells and whistles, but I'm an armature in the hanging department and am happy to keep the job simple. This product fits my need for ease of use.