After practice, you can regulate the length of your stitches to whatever you want. It has to do with the speed you have the machine running at and how quickly you move the quilt around.After a while you will get into the rhythm that you like. I always find that it is good to have a practice sandwich and play around on it for about 10 - 15 minutes before you start each session with your quilt. It loosens you up, gets you into rhythm and irons out tension or knotting problems with your machine. Best of all, don't let people talk you into buying junk that you don't need. The olden - day folk made magnificent quilts without all the fancy stuff and so can we.
Give it a go and I am sure you will be rewarded.