It is worth the drive in my opinion. They have great pricing, lots of quilting fabrics. My favorite finds are in the flat folds. There is a wide range of quality there, I go by the "feel" to decide. Since it is near the Amish, they have a lot of clothing fabric too. Lots of flannel, and minky or cuddle, You won't find complete lines of the latest fabric releases but I think you will enjoy it.
Also consider visiting I Sell Fabric on the north side of Shipshewana, Yoder's and Lolly's in Shipshe, and Carolines Cottage in Rome City if you have the time.