Yes Chantal I have done FMQ before so I know how it goes. I just finished quilting a large quilt on my Janome which you can see on the CW thread here on the forum. I have watched quite a few youtube tutorials on the 750QE but really happy to have a link to more, thanks.
Rosemary, it does have a knee lift and I like it better than the Janome one which never seemed to be quite in the right place for my knee. When I was doing the Spools quilt border I ended up with a pain in my hip from having to push my knee so far off to the right to engage the knee lift. But doing FMQ on the Janome Horizon was great and very smooth and by the end of the most recent quilt I was getting really good at it and my stitches were much more consistent. I am about to try using the BSR on a small wall-hanging so we will see how that goes.
Nancy I know what you mean about the bobbins, but on the plus side it means that there will be a lot less changing and winding bobbins too. Having just finished the wedding quilt and wound 24 bobbins for that I was really cursing not having a bigger bobbin on the Janome. My Pfaff Select 4 holds more thread than the Janome. I also like having a sensor on the 750 to tell me when I have run out of thread, top and bottom. I have not had a problem with the straight stitch, so far, so hopefully that glitch was sorted.