Mine also went to Nebraska , and was posted the first week in January 2018, I used to check the website periodically and each time I got different estimates 7-9 months then 9-10 months, but took in the end 7.5 months. Fingers crossed, I hope your wait is over soon as it's very frustrating, living in this limbo.

Congrats, finally, I had the same feelings, it took forever.
during my final stage, my problems arose with the upload of my documents, they had a problem with my police certificate not showing properly at there end , I sent the damn thing 5/6 times...there was a 10 day wait period until it was viewed and ticked green...
Next problem was at the interview my deed poll, was not uploaded, although not asked for in list, and the Next big one was the Tax transcript, get it and upload it..... it was heartbreaking to have my visa put on hold on the day, to get the last 2 documents in order where I believe , they were never in the list...once sorted, from date of interview to visa in hand was 10 days, and I flew 3 weeks later....
You will look back and feel it went all so quickly, lol , not yet though.. Good luck..

Congrats won’t be too long I imagine.
My I-130 was sent Feb 2019 approved last month and have NVC letter. Just need my ACRO and I imagine if all works out with medical and interview be in US by Xmas. I didn’t imagine it to be so swift.

Best of luck to all.