Karen's apartment is absolutely perfect for a couple. Great location, clean as could be, the bed is soooo comfortable :)
The only "cons" there are : the shower is a bit small (by nowadays standards obviously, showers are huge these days so we get bad habits haha) but perfectly clean, and the toilets are a bit too close to the wall so if you're a bit chubby you'd have a hard time sitting.
None of these would prevent someone from enjoying the stay though I assure you ;)
Highly recommended, I'll book again that's for sure.