AP Hotel Mannheim Viernheim 

We arrived much later at night than expected and I was worried about the lack of 24 hour desk but we did get the lock box figured out (once you get the key, it's the entrance right next to the lock box, only a few staeps away) and finally got to our room. Without an elevator, the steps were hard on my not-so-great knee, but we made it to find a huge room for our family of four. It's more like an apartment. The bed was comfortable, the couch was already made up for our boys to sleep on, there was one fan we made work for everyone, and we did not need to use the kitchen but it looked like it was stocked with enough dishes and tools to make work. The bathroom was decent, the shower is old but drained fine, plenty of hot water and enough pressure. On our way down to breakfast, we could see a lot of the construction going on (rooms with unbuilt furniture, construction supplies, etc) but nothing out and in the way that I remember. Breakfast was sufficient, typical German variety, it definitely filled us up. The decor throughout the entire building is different than typical hotels but fun different. With free parking and breakfast along with the huge room, we would definitely stay again if we visit Mannheim or maybe Heidelberg.