We loved staying at BV's apartment with our two little boys (aged 4). The building security is fantastic and made us feel very safe (highly important for those travelling with kids).
The location is very convenient as described within a short walk to Daan station and proximity to 7-Elevens and street eateries.
Having a little kitchenette and fridge was great with small children though the loft stairs could be a bit scary. The boys loooooved the bath tub with a TV.
Brian was very kind and helpful to help us arrange airport transfers and checked in on us regularly as well as provide recommendations on where to go. Unfortunately, the air conditioner started to leak but it was quickly rectified by a technician Brian brought in. Overall, it was the best experience we've had staying at an AirBnB.