My 22" Hartmann rollaboard is great when traveling for 3 days or more but....I rarely check my bags and the Hartmann is built to take a beating.  The Travelpro is 1/3 the weight and is ideal for shorter trips.  The interior is well designed as are the outer pockets.  An added benefit is most European airlines can reject the 22" rollaboards as carryons.  The Travelpro is therefore ideal for overhead bins...it fits all but the smallest aircraft.  Also, since the regional jets are becoming dominant, this is great for gate-checked options too.