you can do pretty much any size you want; it all just takes learning the process & practice. as for the stitch regulator---you can certainly learn to quilt without it- some people love using one- some use them for a period of time then stop, some never use one at all...it's a personal choice. it would be good if you are considering making an investment to visit local dealers and try out the different machines, with/without stitch regulator, stand up, sit down and the different brands of machines ask all of your questions while at the dealers (or booths at shows), ask about service, free owners classes, warranties, supplies, ease of set up, space requirements; then after you have your 'pros & cons' you can make an informed choice which will be the best investment for you- then you could always look around for a used one (check dealers who may have used ones from people upgrading) if you want.