If so, what are your thoughts?

I haven't, but I was thinking that it would make an incredible skill monkey with a bard multiclass - Jack of All Trades plus the 1d4 from the talisman would essentially make the player proficient in every skill.

Have not played it, don't think I'd care to.  Seemed distinctly underwhelming to me.  I'm not sure why the overall community seems to have such a giant nerdboner for the idea of a 'support warlock'.  That's not a niche the underlying base class is any damn good at, but folks keep clamoring for it anyways.  maybe someone can explain to me what the fascination behind a 'support warlock' is?

The "Jack of All Trades" kind of thing is a fun bonus for my player's character. Other than that, it takes time to reach the higher levels and get those added benefits. 

Would you say it’s at least as viable as pact of the chain?

Oh yes, definitely. 

Thanks for the feedback

Find myself wanting to somehow combo it with ARtificer myself.

How so?