New machines sure are fun! I hope you'll love your Juki TL18qvp as much as I do my TL2200qvp
It's really a fantastic machine that sews a fabulous straight stitch through layers and layers of just about anything! And FMQ is terrific on the Juki because of the great visibility under the harp.
It was my 1st machine, and my favorite still, that I found super easy to operate (except that pesky auto needle threader can be finicky depending on what needles you're using!) I don't typically run it at full speed because it's f.a.s.t.! And mine likes to be oiled regularly.
Not sure what feet came with yours - mine came with tons. The few add'l I've bought are the Echo and Ruler feet for FMQ. I use the seam gauge (screws down onto the bed of your machine) often when piecing to keep consistent seam allowances - can't recall if that came with the machine or if I purchased afterwards but I use it often.
Welcome to the Juki Club