You can do anything, from doll clothes to quilts.

I have owned it for 3 years and sew on it for hours a night, but have not used it for quilting yet. :) It is a great machine for all purposes.

Yikes! Yes the broken needle can cause damage to your machine. Try using a magnet to draw the needle out. I've done the same thing and have gotten it out both by using a magnet and also by gently turning the machine upside down and gently shaking the machine to try and coax the broken needle out.

The darning/free form foot

You can piece any size quilt but a full size is about the largest you can quilt with ease. You may be able to quilt a larger quilt if your batting is thin.

There is no alphabet on this machine. You can purchase needles at many retailers online or local, including at Singerco.com

I was able to baste by moving the stich length lever on my Confidence 7469 to the far right.

I have my 7469Q in my sewing cabinet and it fits just fine. My cabinet is like an armoire, if this fhelps at all

Unfortunately no, none of the newer machines will screw into older sewing machine cabinets. I took an older 1960s Singer sewing machine out of it's original cabinet and had a fold up bottom made for it and retrofitted the top sewing surface to lift up. I lower the sewing machine into the bottom for storage. When I'm using the machine the bottom fold back so my legs don't hit the bottom piece while sitting at the table. Since this cabinet had plastic doors I also made new doors, stripped it and re-stained it. I reused the original folding hardware on the top surface. The bottom is a little lower than the doors since it was a last minute decision to make the false bottom. I had already made the doors at that point. All in all it turned out pretty good. I looked into buying the automatic lift shelves that new sewing machine cabinets use but they are very pricey and you need a very deep cabinet to utilize the lifts. I hope this is helpful.