I have made a few quilts with triangles and a 60 degree ruler and personally I do not find it hard. One piece of advice I received from my LAQ was that when you press the seams apart do not go up/down or right/left away from the seam but use a sweeping motion so you are moving with the grain of the fabric. I set the seam, open it with my fingers and the place the iron in the seam and sweep over the fabric at a 45 degree angle. Before embarking on this quilt you should get some scrap material and give it a go.
Oh one more thing - I measure after each new seam to make sure everything will fit together.
Last edited by racerh; 11-12-2013 at 06:58 AM.