I have looked at this design a number of times when flipping through the book Tatting with Anne Orr, but never felt like I want to tat it. I guess I was also intimidated by the way the instructions was written.
As luck would have it, I have some thread left in a shuttle with a reasonable amount in a ball, but not a lot for any big project. So, why not just do it and get it over with. Anyway, Mrs John has got me interested in trying out old designs, :-)
Surprise, surprise! I think this is a brilliant design. It is like an endless tatting. I can go on and on and on and make it as big as I want without any cutting and tying. The only time time I need to cut and tie is when I want to add thread to the shuttle.
And the stitch count for the rings and chain are consistent throughout. There is no need to go back to the pattern to check whether the stitch count is correct or not. After the first few rings and chains, I can forget about looking at the instructions page and just refer to the picture to see where to join next. And after a while, there is no need for the picture, even! To borrow JaneEb's term, this one can be made on auto-pilot.
But, can it be more than a triangular motif? Yes it can! Pardon me if I'm grinning ear to ear but I think this is beautiful even if I am the only one to say so ;-) For greater effect I may want to try again with two colours.
By adding an extra chain at the corner, I repeat the pattern for the triangle on the other side and it becomes a square. Didn't I say this is a brilliant design!