Thanks for the input. I did look on my box and machine and it satys 6600p. Gonna get it fired up today i hope. My friend got a Horizon and it is nice especially the deep throat but for the price the 6600 will do for my wallo all that I want right now. got to leave room for upgrading. LOLLOLLOL. But between the 3500 which i am going to keep for backup and my daughter eventually and the new one I think I will hve all I need to keep me sewing. Thanks again for all the input. LOVE THIS SITE!!!!!