Hotel Sierra is a big and clean hotel, but with lots of opportunities to improve.
The pros:
-If your going for shopping, this is the best hotel near the "deposito libre".
-It is a huge hotel, you will always find available rooms. Also it has a big parking lot.
-Very clean in general.
-Nice swimming pool.
-Nice staff, the ladies in the restaurant were very friendly and helpful.
-Wi-fi
The cons:
-Rooms are a little bit outdated, with some details they may seem more modern.
-Quality of the food was not proportional to the price, which was very high.
-There are some nice but unused areas, basically there is no service in the swimming pool (although there is a wet bar), also there is a big bbq area near to the pool which is closed.
-If you're planning to save some money shopping, there are cheaper hotels around the area.
In general, I would recommend this hotel if you're going for shopping in the "deposito libre", looking for a clean, comfortable place and don't mind paying a little bit more than other small hotels in the area. On the other hand, if you're going to visit the area, I think there are better options located in a more natural/interesting areas.