I have owned my Bernina 1090 for 18 years and it has never had an issue (despite the fact I have only had it in twice for its annual checkup in that time). I also have a Singer 66-18 Crinkle Coat and a Featherweight. As far as the 1/4 inch thing goes, if I start a piecing project on one machine I do all the piecing on that machine so that my 1/4 inch stays consistent. I also have an 1877 Singer treadle but I have not pieced with it.....although with Hurricane Sandy out there I may get my chance! We are supposed to get our worst effects tomorrow in Southeastern VA.