You probably know that Prions en Église is published in Canada, so cost-wise for us I think it’s an advantage. I share your dislike of it, but I’m subscribed for a couple of reasons.
One, the readings are accurate and from the new lectionary.
Two, it follows the Canadian calendar. Magnificat, though an excellent missalette, does not, it follows, I think, the French calendar. As I attend at least one weekday Mass a week, it’s a problem especially as where I attend Mass (weekday or otherwise), the readings are chanted, and my nearly 60 y.o. ears aren’t what they used to be after working in heavy industry for many years. So I like to have the readings.
While using a missal is fun, I have to say that Prions en Église, the third point in favour of it, is compact and light in my book bag already weighed down with my Graduale Triplex and breviary.
So basically I just use it for the readings, and ignore the rest.