I absolutely love this story! Although it starts with a with a very traumatic event (Elsa losing a foot in an avalanche), it turns into the best kind of Elsanna sweetness. Not only does it bring the girls togetehr, but it also brings Elsa closer to her demanding and strict parents. If the story has any failing, I would say it ended a little too abruptly. I think there may have been room to explore the relationship a little more, or at least add some scenes of new girlfriend bliss.
On a side note, I have no idea how accurately the recovery and rehab process is presented, but it comes across very well done. Makes you wonder where the author gained that knowledge from. Serious kudos!