I own a Trek 7.5FX. It's great! However, I haven't ridden the Devinci Oslo for comparison.
That said, I once had a choice between two girlfriends. I was fond of both of them, but just in different ways.
One was from Holland. She was very intelligent and industrious. She kept a clean house and whenever she wasn't washing, cleaning, cooking, or reading, she was giving me attention. I loved these qualities about her. In my mind, she was what I thought, I always wanted.
Then there was this girl from China. She had to be reminded constantly to clean up the kitchen, to make up the bed, and to clean up the bedroom. However, she had an excellent sense of humor, she kept me laughing. She was the prettiest girl I'd ever seen in my entire life. She was always in the mood and made me feel in the mood, everytime I looked at her.
Everything in my mind said, "No!" she's not right for you, you have your standards. On the other hand, my heart would always remind me, how much I missed her whenever she was out of my sight for more than a day. I always longed to be with her.
We had total fun throughout my college days! It was really sad the day I graduated and had to leave college in order to become employed in another state. I could tell that she wanted me to ask her to come along, but that would have been too complicated back then, so I didn't...Sure am sorry, I didn't too!