The air conditioning in the room assigned was not functioning well, as the air blown out was hot. We called reception at 8 PM+. It took about 20 minutes for the maintenance technician to come. He adjusted it and told us to wait for 10 minutes to see how it was. In fact, it was still the same. We called reception again at 10 PM and were informed that maintenance was on the way. So we waited, but they did not turn up. We called again and were only informed that there was no maintenance person at that time. Reception offered us to change rooms. The new room was much better. As a guest, I was thinking, don't the maintenance team need to upkeep each room to ensure all are functioning well? Are they doing their work well? This is just my opinion.