@Preet Bro Internet TV has most of the necessary Apps like Prime Videos,Zee5,Hotstar,Eros Now,Sony Liv,Hooq & so on and name one missing app it's Voot App but Jio Cinema is available to complement that.
The major drawback for me regarding some apps is quality selection Prime Videos doesn't have quality selection and will experience minor stutters and consume huge data and same is the case with all the apps that doesn't have quality selection like Jio Cinema,Eros Now, Sony Liv and all as all doesn't have quality Selection option so data consumption is huge on these apps but Zee5 Hotstar Spuul Netflix etc has quality selection option and all these apps streams flawlessly.
Definitely Internet Tv will solve lack of enough HDMI port issue and constant plug in and out & thats the main reason I bought Internet TV.
I'm expecting all the lagging Issue with some apps that doesn't contain quality selection option will be taken care of in future app updates by App creators by providing that Quality selection option which is a very simple solution but it's taking such a longtime.
As Chromecast is built in and works very well either through PC/Laptop or Mobile laggy apps can be just mirrored from their official websites/mobile apps itself.
As per my view the bottomline is Airtel Internet TV runs flawlessly all the Apps that contains Quality Selection while one needs to find work arounds such as miracast for all other laggy apps.
It's definitely worth to buy for Rs.2500 you can go for it and if you are alright with mirroring from pc/laptops or mobile certain laggy apps then you can fully use Airtel Internet Tv and completely stop using Firestick.