I am preparing for a 6 week trip to Europe and usually only take a 22" suitcase and a duffle, however this trip warranted a larger main suitcase, however I am very aware of weight restrictions on many of the European (lower cost) airlines.  The Tarmac 25 weighs the same as my old 22" Atlantic as they cleverly use different fabric types in different parts of the bag depending on potential wear points.  The zippers and wheels feel very sturdy.  Finally, the "no matter what" warranty sealed the deal for me.  This size is too large to carry on, so we'll see how it does on it's upcoming maiden journey.