Pros:

• An alternative application for telegram users. As per the application it runs faster than the first one and has more emojis and animation.
• You can re-order the pinned messages.
• It also caters multiple accounts, this is good for folks who are doing some marketing stuff and even just a normal chat. You just need to switch it to the menu and voila! you can use the other one.

Cons:

• None for me ( I myself isn't a telegram user though I do have one but I prefer discord. )