Bought vehicle in 11/97, and have driven over 297,000 miles. Original transmission lasted 207,000. Have replaced just about everything (except engine) several times. Worst experience involved the fuel pump... after replacing 3 times in 12 months, discovered the fuel harness underneath vehicle had a nick (from a rock?), and when it bumped metal it would burn the pump up. Needless to say, our family of 5 have loved the Suburban, and would definitely purchase another.
interior layout, seating, large cargo space, smooth ride.
Cover the wiring underneath from rocks (see above).