We started using this app about 3 weeks ago. Overall it's a good app, really one of the better ones for putting limits on variants. But, it does have some flaws holding it back from receiving 5 stars.

1) You cannot do an import / export for faster limit creation.
2) The search feature does not register numbers, so if you search for "21"
Tissue Ball" it won't show up unless you remove the 21" (Minor issue)
3) Not every item shows in the search when creating a limit. Even though
it shows up on the front end when you search for it.
4) It will randomly delete all items from the limit if you click on a blank
spot within the search box. Forcing you to cancel any chances you
made and to back out so you don't lose any existing items added from
a previous save.