Two Vikings in my life. One from the 80's, currently on long term loan to DD. Newer one is Lily, she's about 15 yrs. old. Never a moment's trouble with either one. I still use the old one over at DD house, and am always happy to get her singing again. No problems with threading.
Also a Bernina embroidery and serger. Prefer the Vikings. And too many other machines to list. Need to use them more often.
You will get many years of happy use out of this new baby. Enjoy!