Hello, I was wondering if this Trek 4300 would be a good idea to commute with. I will only be commuting about 4-5 miles a day, but there will be some steep hills so I don't know if the heavy weight will be too adverse. Also, how heavy is 30-33 lbs? I tried reading some reviews about this bike but half the reviewers complained it was heavy and the other half commended it for being light. Thanks for the help.