I have the Steam-Fast mini. It's a good iron, heats up fast. I don't put water in it. If I want steam I use a mister bottle to dampen the fabric. Only thing I don't like about the Steam Fast Mini is that it doesn't have a handle like a regular iron. It's just got indents in the sides so you put your palm on the top and grip the sides with your fingers. Holding it takes some getting used to. I've gotten comfortable using it to iron short seams when putting together blocks and have it set up for that purpose on a small wool mat beside my sewing machine. However, when ironing long seams like on borders once they're stitched to the quilt it feels awkward and sometimes a bit insecure in my hand. For long seams, or getting wrinkles out of yardage before cutting I use a cheap 20+ year old full size Black and Decker that I don't put water in- use mister bottle to dampen fabric if I want steam.
Rob