Now in the case of US and the clearly inferior version of QIK/SHARES as the underlying technology by it's very nature would be less likely to perform as well as other systems like Sabre, Worldspan which are true GDS's. So when you look at the underlying technology which dates back to Eastern Airlines "System One" coupled with the cheap at any cost mentality you have a prescription for a customer unfriendly experience mosre often then other vendors due to the antiquated technology deployed by US. The Res Migration and the continued on going issues are proof positive.
To be fair/objective, US is not the only airline having problems with Res Migration. Westjet (a darling LCC in the Great White North) is also having problems. And I don't think Westjet bought the cheap system either. The difference between the two is how the problem was handled & resolved afterwards ... ... ...
Westjet res system problems story
WestJet is known for low fares and high service standards. But a reputation that took 13 years to build is losing altitude after the airline upgraded its reservation system in mid-October.
The unexpected problem? More than 500,000 bookings made before Oct. 16, the changeover date, are not recognized by the online system.
Six weeks after the upgrade, disgruntled customers are still posting messages at WestJet's Facebook page.
Until calls get back to normal, its planned frequent flyer program and co-branded credit card – the RBC WestJet MasterCard – are on hold.
Also on hold are code-sharing plans with Southwest, KLM and British Airways. (This practice allows one airline to sell flights bearing its name on aircraft operated by another airline.)
WestJet is working closely with Sabre Holdings Corp., its technology supplier, to fix the problems. It is hoping that a new computer patch, due to arrive this week, will do the trick.
Sabre has shifted 200 call-centre agents at Travelocity, an online booking website it owns, to handle WestJet reservations.