Just another reason I really love this card - no reports of AA's or CLD's so far.
I took mine up to $6920.78 this spring, while waiting for some reimbursements. It was nice not having to worry about even making a minimum payment, and I've "made" $170 in cashback since getting the card. Currently have $3600 on the card, with most of that being paid off in one chunk in December. Stretching the rest out until March, when it's due.
The score hit from maxing it out will only affect EX, so it's a nice way to "hide" balances from lenders that look at other bureaus.