ive had 3 x 058 manfrottos. they are great when they are new, but i find the legs gum up too quick. they dont like dirt, sand and salt water. but the more simple legged models like the 161mk2 can be treated far more ruffly. but the 161mk2 is a monster, and doesn't go very low, and the column doesnt reverse.
i hink i have had all the major tripods in my time, and none are perfect, but the tripod can be the most annoying piece of equipment, so do your research well.
paul