POSITIVES
Location is great
Decent design of the apartment
Fast internet speed (when it works)
NEGATIVES
It is not a good apartment if you need to work or if you plan on staying long-term more than a few days. There are too many issues to deal with, but it's totally a fine apartment if you only plan to stay a couple days or don't plan on spending much time inside the apartment.
The management company is super responsive but they do not offer actual hospitality. They will not refill your coffee capsules or provide a powerstrip if you need outlets (again important for work). They always say "Happy to help with anything you need." But they actually don't provide service more most things you might need help with. For example, internet is super spotty. They'll respond with, "Okay, sorry about this, we will let our internet provider know." Okay, but how about fixing the problem so your guests don't need to deal with it. Perhaps, move them to another room?
It's not very clean. The bathroom has small brown stains near the toilet and the toilet paper dispenser (gross), the floors are very dirty and dusty, the rug has stains, and the sofa does as well.
They don't have cleaning products in the apartment.
Climate control in the apartment is impossible. It is way too hot. If you're trying to work inside, don't count on it. I used the room darkening shades at all hours in the daytime, so it becomes depressingly dark, but moderately helped to keep it slightly cooler. Still feels like an oven though.
Hot water only runs for a few minutes, so ladies, don't count on being able to shave your legs often.
WIFI is fast, but very, very spotty, and not too dependable.
The bathroom isn't comfortable. There are no towel rods to keep your towels on. There is one hook, but it's too far from the shower.
There is no soap dish or soap dispenser in the bathroom.
The neighboring guests are difficult to deal with. People in the other rooms might smoke outside their window, and if you keep your window opens it wafts in. Really difficult to deal with.
A lot of young people rent the Casai apartments so, if you want a good night's rest because you're in Mexico to work, don't count on it every day. You can hear people above walking back and forth at all hours of the night.
The apartments often get a bad sewage smell.
One of the elevators broke, and they didn't fix it.