So it seems from most answers I should look more at the road bike. Is the only concern because of my weight the wheels or is the something else I should worry about?
Also what about componants should I worry if the componants are the lowest level 2200 shimano or will they all basicly be ok

On my comfort I had mtn bike parts and had to change my shifters my peddals. My steering is shot but they say they need to change the whole thing. Also issue with derailers chain and back hub. I don't even want to talk about the wheels. I have to get them trued everry few weeks and had a rim changed already ( base cheap rims)