I would 100% recommend this to beginners! Even impatient, disgruntled teenagers. It is a great project to introduce someone to knit fabric or even to sewing all together! The customisation on this could be endless! Overall I think this pattern could be (with a few tiny adjustments) one of my favorites.
The sleeves are 3/4 but are a tad too long. I tend to roll sleeves up anyway however I think lengthening them to full sleeves could be more useful in the winter. I would also cut on the fold for the back. This was a cheap fuchsia jersey from ebay for literally pennies. (Sorry the colour isn't very clear in the photos.) So this was also very cheap to make.
Hope everyone is enjoying their day in the sun!