http://www.quiltsmart.com/khxc/index...58inchlonestar
She makes it look easy. Does the interfacing stay in. I wish she had shown how she sews a row together

Yes, the interfacing stays in. It is quite easy to do and I have taught it to beginners. :)

What I'm confused about is she said choose 4 fabrics, but the pattern picture (rainbow star) uses 6?

I used the Quilt Smart for a Hunter's star and it worked GREAT!

Yes, I just finished a red white and blue lonestar using the panels. It is easy. The interfacing stays put, there is no bias, and it is easy, easy, easy. They fit together very easily, but follow the instructions.

It's fabulous. I'm a huge fan.
As I just wrote in another post, the only cons are that you're limited to the sizes offered, and the additional cost (which I thought was justified by the hassles avoided and the ease with which it goes together).

I posted this on the "yellow" thread a couple of weeks ago.
http://www.quiltingboard.com/t-127778-1.htm#3397137

I haven't made the Lone Star, but I've done the Mariners Compass by QuiltSmart. The interfacing stays in and it went together pretty easily. The foundation piecing really make the points come together easily.

You just fold over the rows. They're perfectly aligned - assuming you placed the rectangles correctly - that if you fold and sew on the line provided, everything will match up perfectly. Hey, an engineer designed it. ;-) The interfacing stays in and together as one piece.

A little pin here and there won't harm the process ;-).

You can do a very large basting stitch (an old Carol Doak trick) if you wanted to see if the diamonds match up correctly before you commit. I will say that it is a royal PITA to do any unpicking of small stitches on that interfacing so be sure before you sew.

Once all the rows in a section were all sewn together, I split the seams and pressed them open, but that's just a personal preference. It's not necessary.

works good, but is a pain to quilt. you have to machine quilt, because the interfacing stays in and makes it thick. ask me how I know, LOL

I have done this one and it is very easy. Seams match perfect. Go for it.