I have the babylock Evolution with air threading and coverstitch. I have to say it is solid, does wonderful stitches, whenever there is a problem it is user error. There is a pretty steep learning curve but this machine is a good one. The main drawback is the price. I did a lot of calling around, comparison shopping etc. and paid $2000 for mine (18 months ago) but the prices I see right now are close to double that. To be honest, I don't use it enough to justify what I paid for it let alone what it costs now. So, if money is no object I think the Evolution or the Evolve stand alone. Otherwise I would look for some of the other models suggested. I've heard, though I have no experience, that Brother is a good choice.
One criticism I have heard about the Evolution and other machines that are combination serger and coverstitch is that it has a wide foot that is difficult to manipulate. I've only used an Evolution, so I can't compare - it is a pretty wide foot that can be cumbersome on corners etc. But its all I know, and I really do love my Evolution. Incidently, I use the coverstitch a lot - both my husband and I are short so there are a lot of alterations, so I'm really glad I have it. But if you don't think you'd use it, maybe not worth the wide foot. Can someone else speak to this?
I just purchased an Elna from a friend whose Mom went into a nursing home. It looked brand new, still had the original box and instructions, etc. Got it for $125. I found the original receipt and she had paid $1200. I just read the instructions and followed the guides on the machine and it wasn't a problem threading it. I played with it some and it sewed and cut great. Have been too busy quilting to get it out and really use it though. At the price, I just had to buy it.
Baby Lock, Love it.:thumbup: