Great rental, with a great view, you will find yourself staying out on the lanai most of the time. We truly enjoyed our time staying at the apartment. Everything worked properly, its very clean, comfortable, has everything you need, the staff down stairs is always pleasant, the building is very secure. Make sure you make it up to the roof deck, there is a perfect 360 view of the old city, the location is great.
I highly recommend the restaurants at the Santa Clara Hotel, have breakfast at the main restaurant, there is a pair of wonderful Tucans, that come to your table, besides the food is incredible, the breads are amazing. There are many wonderful boutique hotels around, you can go in for cocktails or a bite to eat.
I would always stay in this apartment in Cartagena, the place and owner are great! Wishing you the wonderful time I experienced, Cheers!