I-485 service center

Hi, I have recently learned the difference of NSC from TSC for the I-140s. BUT I want to know if the approval rate of I-485 is also affected by the service center? Can someone with an approved I-485 share your experience? Thanks a lot.

to sara.fisher150:

I’ve never heard of different approval rates for I-485 because of service centers. Most of my friends who got I-140 approval had no problem with I-485, FYI.

to sara.fisher150:

I've also heard about the difference in approval rate between TSC & NSC for I-140, but I don't think there is much difference for I-485. At least that's what my attorney told me.