The proximity to EZE is great. The rooms are tiny and ok for a one night stay but would not have worked well for a longer stay. It was difficult to find a space for a large suitcase and still be able to move around the room.
It took an hour to get a pickup from EZE which wouldn't have been a problem if they would have let us know it would be that long but they said they were coming "right away" from less that 10 minutes away. Other issues, the toilet had a constant loud drip, the room was not furnished with towels, I had to ask for them and the shower head was in bad shape with water spraying everywhere. It is in a nice area with some good eating options close by but it was very overpriced due to the condition of the room.
I was willing to pay extra because of the 24 hour shuttle which ended up being a disappointment, don't let that be your reason, Uber is widely available around the airport and is very inexpensive.