I have two Tiptronics. 2010 & 2020. My 2010 I have had since 2001 and it is my primary machine. I don't know what IDT stands for, but my machine is a workhorse. The 2020 was bought at an estate sale and just recently has issues and will be going into the shop. I do have a FW and a Babylock Elegante as well, as a Gammil long arm, so you can see I seem to have all the bases covered. lol