I too love love love my PQ ! I did have to purchase a different FMQ foot as the one that came with my machine did NOT work right. I ordered the Juki High Shank foot and it works like a dream ! my machine LOVES Connecting Thread both the 100% cotton and the Essential Pro poly . It has yet to truly hate any thread in particular. Oil , oil, oil ! I clean by bobbin area after every bobbin change ( I unscrew for a full cleaning when I oil ) , I oil after every 10 bobbins. I just stack my used bobbins on a small peg near my machine and when it is full ( it holds 10 ) I oil and unscrew the footplate and do a full clean in there.