At this modern times, which one suits best, with bells or no bells?   

i think you cant generalise i think it depends on the two people. You could generalise about it but then if it happened to you it might be completely different. I think that its a good idea to live together first but it cant and shouldnt be used as a substitute for marriage as marriage is seen as a legally binding commitment which shows your undying love for your partner as you agree to them having access to your stuff and it shows you have nothing to hide.

nowadays, live-ins are a common site and set-up. teenagers would like to know more about his/her partner by live-ins. i am not against of it as long as they know the extent of their present relationship. marriage life is not easy, i think that it is the biggest decision an individual face in a lifetime. so many things are meant to be considered and that includes your partner.