The thing that I've always liked about Roshni as a character is that she's not a typical daily soap heroine. She has her flaws, has made her fair share of mistakes and seeks to rectify them. She's not supposed to be an epitome of perfection. She's human...and that's what I like about her. One can easily relate to Roshni.
And it's nice seeing a girl proposing to a guy in a daily soap...I honestly can't remember the last time I saw a marriage proposal like this. I think epic is the word :)
Side note: I could be wrong but I get the feeling that Misha will take away the Khurana empire through fraud and this will teach Simran the ultimate lesson. She did that to DD. And I think Kritika will show her true colours to Simran...and the blindfold will come off.