Overall the apartment was nice and I gave this a 4 out of 5 stars.
The good: The price and location were great. It's a quick walk outside Old Town so it's quiet but close enough to everything if you want to go out. Communication was also great and had no issues there. Instructions were sent to us ahead of time and they responded to messages promptly. There was also a homemade baked good and some packets of information on things to do in the area which was a pleasant surprise. Air conditioning worked well which was a must for the heat in the summer.
Areas for improvement: Wi-fi did not work. We tried resetting the router several times even but this didn't help. It took several minutes to load a single webpage, if it loaded at all. Internet is pretty crucial for international travelers and we resorted to using an international data plan on our cellphones which got us by. The mattresses have almost a cardboard feeling to them and the springs are extremely squeaky. I've slept in all kinds of conditions and go backpacking in the mountains so I don't consider myself a picky sleeper but thought this was worth mentioning. Lastly, the pictures and descriptions are a bit generous. It's much darker than the pictures show and it feels a bit tight (mainly the living room and general layout).
Overall this apartment got the job done but I wanted to list the pros and cons in case it helps.