I got this card last July and have always gotten the hard pull language, never been shown the soft pull CLI request on my account- until today! I decided I may as well try it and see what happens. My new Chase Freedom was just reported at $18k so I was hoping for at least that.
Hit the button and it was instantly approved for an additional $10k, bringing my new credit limit up to a whopping $23k. Asked if I wanted to request more with a HP but I didn't see any reason to do so because honestly $23k is more than I was even expecting.
Just as a data point, I haven't used this card too much since most of my $$ goes onto my CSP & Freedom. I think my last 3-4 statements were under $100 on a $13k CL so it seems possible to get a CLI without too much usage. I do love the card for its perks, so I'm definitely keeping it after the first year and the CLI is the icing on the cake. Super happy with Citi, and I'm starting to rethink not putting more spend through this card!