St. Johannes plays a significant role in the religious and social culture of this area. It's a nice spot to share a thought or prayer during a busy travel itinerary.
You'll be spoiled for sightseeing choice when staying in Deggendorf. St. Johannes is a good place to start here, but there are lots of other worthwhile attractions to appreciate. Egg Castle, Basilika Niederalteich, and Maria Himmelfahrt are close to the house of prayer and will round out your day nicely.