I had a good experience, though it was about two years ago. It took around 25 calendar days for them to make a very minor comment on the I-140 form, but not on the case itself. After I submitted the response, it took about 20 days to get the approval.

I've got approved in 30 days after paid premium. worth it. less headache.

I did with Chen immigration in 2023, no RFE, approval in 5 days

with Ellis Porter in 2023 approved in 3 days

@raza khan i have already submitted my i140 petition and its been more than 16 months now, i just want to upgrade my petition to premium processing. would i still require a good lawyer? would not it be simple to just upgrade my application? or is there anything tricky that i am missing?

I think you can learn to do by yourslef. It is a simple form that you need to fill it out and send it to the correct address.

@A I , @Adam FUSEMAN , they claim if uscis fail to give decision (approval, denied, rfe) in 15 working days, applicant can claim for refund of premium processing fee. Your case took 25 & 30 working days does that mean it was sorted out under premium processing? do they inform about any delays?

@raza khan 8 March 2024

wait

@Ammar Badar It is 45 calender days for EB2 NIW.