I stayed twice at the apartments. I had two different rooms. First one was better than the second, but it was a place to sleep so I was comfortable. Few minute walk to Republic Square, surrounded by cafes and restaurants. Yerevan is walkable and safe, this is perfect for what you need. The challenge is not having a concierge but you can get by if your flights are at reasonable times. They were good with communication via WhatsApp. Arranged cars to and from airport. Apartment has all amenities that you need including a washing machine, iron and hair dryers.