If you dine out a lot and there are good prime/eazypay restaurants in your city it's worth it.
There are a lot of eazydiner restaurants in Bangalore, but for me I still wanted the freedom of choosing a restaurant not listed on their app - a lot of the really good ones near me aren't on eazydiner. But still a few good ones near me are on eazydiner, so I got the LTF platinum card.
If there are 3-4 good restaurants (that you already go to) on prime/eazypay you can opt for the signature card.