Hi, Behzad nice to see you the other day and it's good you join here to make use of car knowledgebase.
To start, can you be more specific on your wife SUV requirements like 5/7 seater, school run, long drive, weekend driver, mall cruiser etc. to get you appropriate advise.
Although I don't have anything against SantaFe, it's parts and maintenance is equally expensive as Japanese SUV so be open to all Japanese brands too for better resale. One of my friend wife drives the same for work and I know the expensive parts and service story.