Seemed to be specifically better targeted than a generic "Sincerely" or a phrase used over and over by others such as "Dedicated to Your Success."
But it is definitely not as strong or interesting as it could be.
I saw a recent close by a known copywriter using: "Warmly,"
It is not often a valediction stops me.
It was a turn-off to read that. It felt like a weak handshake.
Interestingly, a couple brief Internet searches found little to nothing on the topic.
What do you think?
It doesn't matter what the valediction is, or if there even is one?
Just use 'Sincerely'?
Go for the gusto and be 'Your [exciting phrase here]'?