ItтАЩs an overhyped version of premium service, travelled once till LDH in SVDK VB, if speed is the differential factor then existing service such as Shatabdi & SF Express hasnтАЩt been tapped to its full potential of speeding.
IR shouldтАЩve thought to adding more Gatiman service by upgrading infra than introducing new category of service and putting load on infra.
PS: again itтАЩs my personal view open to disagreement.