Do Toyota Noah / Voxy Power Sliding Doors problematic?

So, i am planning to buy either Noah or Voxy 2016 onwards.

The varieties come with either one power sliding door (usually on the left) or both rear doors are power sliding.

My heart wants all the luxury (ie both power sliding) but i am afraid that this system is problematic.

If both doors power sliding, that means 2 potential problem rather than just one.

What do you all think? Any testimonies? I read that Toyota Sienna has this problem, not sure about Noah / Voxy.

Thank you all in advance for the inputs.

Cheers