LOVE mine...cheapest Singer that they make...bought the display model on sale...couldn't pass up $150. Been a champ...use it on EVERYTHING! It doesn't make a good strenghth stitch so I always come back and run a line...but seriously...I finish items in about 65% of the time. Awesome invention!
I absolutely love my serger, but I'll admit, I'm quite lazy -it's in my cupboard at the moment because I haven't got a lot of space, and I tend to finish my seams off with a zig zag stitch if only to save time. But it does give a nice finish to the garment for sure! As for knits - they're so much easier with a serger!