I had a good stay in the Acostar hotel. The location was great and within walking distance of everywhere I needed to go.
The room I stayed in was extremely small (tiny!) but the bed was comfortable and the bathroom was nice as well. The hotel is near a lot of shops, bars, and restaurants as well as tram/train stops about 2/3 minutes walking distance away.
The staff at the Acostar was always friendly and helpful but I did have one incident the first day in the hotel. I woke up from my nap to a man banging at my room door telling me to open it because they had to check my water. I wasn't informed of this by the hotel staff nor did I receive a call so I told the man out of the door that I wasn't going to open the door. He started banging on the door and yelling that I had to open the door for him to check the water because the water was poison this and I could die. Yes, this actually happened. I was freaked out and extremely upset about it. I called the front desk, and the man at the front desk told me that yes, the man at the door was authorized to come to my room to check the water and admitted that the man's approach was completely wrong and they should've called me to warn me first. The man at the front desk apologized profusely and all was well.
All in all, other than that incident I enjoyed my stay at the hotel (though I probably consider it more of a BB or upgraded motel) and it was affordable with a wonderful location, accessible to everywhere that I needed to go as a tourist.