When it comes to any hiccups or hard parts on this pattern, well there just isn't any. This really is a great beginner pattern and a perfect go to pattern for your tee shirts. I would HIGHLY recommend this pattern to anyone just getting into sewing knits, also as a staple pattern to have.
I always say, no matter how much we already know you can always learn something new. Open a book, website, or blog, take a class that is labeled for beginner, even if you think your skill is higher. I bet you will learn a tip or trick or two; there is something to be said for taking it back to the basics now and then, it's refreshing.
The who, what, when, where and why with a wearable muslin.