The basic plot - romance, Cold War, espionage, and mountaineering - keeps you engaged, however the writing is so-so, and you constantly wonder why are they using fictional countries, towns, and ski areas?
Given a good script, this could turn into a pretty decent movie … footage of awesome avalanches, superb ski footage from Portillo, Olympic footage (Cortina, Squaw Valley, or Innsbruck), as well as the beefcakes and eye candy you would have for the main characters.
Of course, a knock-off could be written in a different location (Indian-Pakistan border or Indian-Chinese border), with the real modern tensions of nuclear powers going head-to-head. Inexpensive used copies are a readily available, and you may also read it on the internet archive.