Is the following English message correct grammatically and polite?

[Ahmed]

Hello everybody,

I received a nice message from one of my colleagues at work regarding my first written manual. She said a nice feedback and comment about it. I want to reply to her message telling her about my appreciation to her message and nice words and the possibly of adding her in Facebook. I wrote the message but I am not sure about it because English is my second language.
So could you please help me in reviewing and modifying it (if required)?
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MESSAGE:

Hello XXXXX

Thank you for your nice message, feedback and wishes. I really appreciate it. I really hope that the readers will find it useful and helpful.

By the way, sorry for this a bit late response as since we are not friends in Facebook, Facebook automatically filters that message to Others and I don't get a notification about it. Anyway, it is nice to see you here and if you don't mind we can be friends here in Facebook.

Thanks a lot again and wish you all the best.

Regards,
my name