Great access! Only few minutes walking to Tenjin area and Daimyo area. If you would like to try the taste of local food, Nagahama fish market (長浜鮮魚市場) is definitely the place to visit. You can go there on foot from the airbnb. I recommend you to eat breakfast at the restaurants in the market.
There is a Nagahama ramen street. You can enjoy various ramens there. There is a public bath(ONSEN" Tenjin Yuno Hana"天神ゆの華) close to the airbnb. You can enjoy natural hot springs.