I'm interested in reading the replies to this thread.
I'm new to quilting and haven't SITD on any of my quilts. Two I did a grid pattern and two more I did a soft curve using my walking foot. I liked that a lot! I've washed all the quilts afterwards and all looks great. I'm not really sure or understanding why one should SITD
I did make a table runner that I didn't want a quilt pattern running thru (did I even explain that correctly?) so I did SITD the runner. Came out nice.