I am interested in purchasing a used Murano. In fact, I have one in the garage -- weekend test drive. It is an 05 SL with 11k miles. The CVT makes me a bit nervous only because it's unusual -- love the way it drives though. Are these as reliable as other Nissans? Anything to be concerned with? I've got about 12hrs to make up my mind on this one -- buy it or take it back and think some more. Thanks.