Ash D.wrote a review of Arc'teryx Beta LT Jacket - Women's on December 16, 2018
Familiarity: I've put it through the wringer
Fit: True to size
Got this jacket for my girlfriend before our recent South American mission. It is solidly wind and waterproof. If it's in stock, I would personally recommend buying up to the pit zips and a few other features. However, my gf loves this version. It stood up to the wind and hurts-your-eyes blown snow/ice pellets climbing volcanoes in the 40mph+ Puelche winds in Chile like a champ.
Medium is maybe slightly long for typical 5' 4" on cuff length but leaves space for fleece/primaloft mid layer(s) underneath.