Sergers like embroidery and sewing machines all have different features to consider. Some do more than others, some are easier to thread, some have knee lifts, and some have built in tension. When I bought my Viking what I loved was the built in tension control. I have Viking machines and love the fact that I've never had to mess with the tension, its truly automatic. I got a great deal on one and bought it. A month later I went to a Brother event mainly to get more education on using a serger and fell in love the Ovation. To say the least know that I'll eventually be able to sell my Viking for what I bought it for I got the Ovation. I take classes even here a year later and love my machine. You really need to check out what all options are available, decide on a price point you are willing to spend and then test drive them. Make sure you know what to expect from the dealer, classes, customer support, where to take it if you have any issues, etc. Sergers are great and you can do many things on them. Including quilting. Check out Nancy Zieman's book on quilting with sergers. I love mine. If I had the space I'd keep the Viking and the Ovation just to have them both threaded and ready to use at the same time. Make sure you know what needles you'll need, some are very specific to what ones you use. Have fun