In my experience, the NVC process is better than the Uscis stage, with less stress and they will check everything faster. But you have to check everything before submitting, remember to upload your W2 and all the required documents, if previously married, you have to upload the divorce decree. My husband and I filled up the Ds260 together in one afternoon, it took us like 3 hours. This stage is so much better!!!!! Relax, double check everything before submitting and you'll be ok. Good luck ❤️