Going to join CET in 3 weeks

Not much. As a data point, I did the CET status match to Diamond last year, and proceeded to play a whopping hour of baccarat at PH (I think it was a $100 table, but I was playing very, very few hands). Since then, I get regular emails regarding comp nights and/or invitations to table games tournaments. They're lower-level invites (stays are usually limited to Linq/Flamingo/Rio, and the tournaments are, I'm sure, pretty huge ones without a significant chance of coming out ahead), and I've never actually taken advantage, but they're there.

 

For the most part, daily average drives offers. Comped S-Th rooms are easy to get at the lower end properties. A diamond card gives specific benefits like no resort fee, free parking, priority lines, etc. Benefits are listed on the website.

 

I am just Platinum with CET and get continuous mail, and email offers. All of them free rooms, some free play, concert tickets.

 

That's a good teaser offer.
Host because you are Diamond. I have host and my ADT is surely lower than yours.