Gravis has a fairly broad selection of Apple products and accessories. The service personnel is friendly and somewhat knowledgeable. Hardcore Mac addicts might disagree. Lines are fairly quick at the register, albeit around Christmas the store feels very under staffed. You might be in for a 15min wait to get just one simple item if you are unlucky. Buying Apple hardware here can have some advantages, they have a fairly cheap extended guarantee that gives you some additional benefits for the three years after your purchase. I've made good use of it before saving me about 500 EUR on repair costs. The store is located very close to the central shopping streets in Münster, so parking can be a bit of a hassle. Your best bet might be a parking garage near Loerstraße. read more