Reliable Ac rent vendors for the season

Hi, I was looking to rent ac for the season and I am looking for some contacts from which I cant rent the AC. Also I am doing this for the first time so I wanted to know a few things, 1. Till which month I ll be allowed to keep the ac? 2. Is there a setup labour cost involved? 3. What star ac do we get while renting? 4. Have heard people complaining more about renting as they face multiple issues, so wanted to know your experience. Thanks in advance.