Didn't find them professional at all. Bought garage through Immo Bel Air, broker was very friendly and flexible until I made an offer. 19/04/22 offer was accepted, within 2 weeks I had to pay 10% of the purchase value into a third-party account of Immo Bel Air, I did this on 2/05/22 and nothing happened since then. Worse, the real estate agent didn't call back, didn't answer emails and if you happened to see him, he got mad and blamed the property manager for the property he bought, knowing he hadn't asked for any information. In the end with a good conversation, the broker admitted his mistake and put everything in order in record time.