Hi Jeanne,
I have been using Alex Anderson's thread for over a year. I like it because it is a clean thread. Some threads leave a lot of lint. Also, it is thin but strong and presses flatter. And because it is a thinner thread, there is more on the bobbin and therefore, you don't have to fill the bobbin as often. Leslie recommended it.
Let me know when you are planning on going to the Sewing Room.
Hope you are having a great time.
Ellie