Interstate Music / Cascio
13819 W National Ave
New Berlin, WI 53151
My husband and I have spent many hours in Interstate Music (though for most of our shopping days - the store was called Cascio)
We are not crazy about this store.
It seems that they prefer to sell you something online so they won't have to really talk to you.
Going into the store, they have a nice layout and what seems to be a lot of merchandise. But never what we are looking for.
The selection isn't the best, there is no customer service, hard to find employees, and we have discovered, no support after you have purchased the product.
Want instruments? Take your money and go elsewhere.