Yaay! I have two 99's - I bought one, then about 2 months later was given another one, but the second one isn't working yet (electrical problems) - but I love sewing on the first one! It was "frozen" when I bought it but just from old oil. I cleaned and oiled and greased her up and she sews great...and the best part is that the more I use it, the happier it gets and the smoother it runs. I don't think it was used much at all in its prior life and it seems to really like to be put to work.
It's a delightful little machine to sew on, and it doesn't hurt that it's cute as a button either. I would sew on it more but I have too many machines I love to sew on to give it all the love it wants.