Hello! My advice would be to use it on a project that requires as little cleaning (laundering) as possible for obvious reasons lol. I sew with leather every day making handbags. I am an apprentice to a man who has been doing this for 30 years. If your suede isn't thick I would not worry about needle size - a practice piece is probably the best idea so you can get a feel for a good stitch length - it is most likely going to stretch on you. I sew on a Juki at the shop - it is the fastest machine! I have a hard time coming home & sewing on my own - they just seem to crawl lol. Good luck with your project and let us know how things are going.