This is a very functional and well made rain jacket. The style and fit is not that flattering, but when it comes to a rain jacket it's more about the quality and functionality.
The fabric is very durable and should hold up for a long time unlike some cheaper alternatives that are prone to tearing/ripping. The stitching, buttons, and zipper are all high quality as well. It definitely has some thickness to it so I could see it being hot to wear in the summer, but overall I think it's good quality for the job.
I'm 6' 1" and 175 lbs and this fits me well as a Medium size. I would typically buy a Large in jackets but Medium does the job here and I think a Large would be oversized even when layering this on top of other clothes. Arms are a good length and give good coverage to keep clothes underneath dry.
Overall I would definitely recommend this as a rain jacket option. Again not the most stylish which is what drove the 4 stars instead of 5, but it definitely gets the job done.