This car is super reliable if it was maintained regularly and in OK condition. (No accident, no flood, no nonsense abuse)
If the car condition is OK and less than 100K km, then I think you only need to pay more gas and Taiwan auto tax (3.7) for it comparing with Camry 2.0. (Of course if you have accident, then you need to pay much more because it's imported)
You can buy oil and parts by yourself and ask private repair shops to maintain it. Just like other Nissans G37S is easy to maintain.