OMG, yes!!!!
We did WL CL for 10 nights in July. It was our best Disney trip ever (out of 8 trips). Our girls absolutely adored club level (and the all you can eat cookies)
We felt that they do step up the service level a few notches, and we already feel that Disney does service right.
The lounge offerings were fantastic. We didn't make it to the lounge every night but on the nights we did, we had chicken wings, scallops wrapped in bacon, venison chili, venison meatballs (my first experience with venison...yum!), chicken on a stick things....all of it was really yummy.
Our kids are grazers, versus eating big meals, so it was nice that when they were hungry or thirsty we could pop into the lounge and grab something. The CL CM's were so awesome to the girls, and even on the last day, gave them a bunch of cookies to go because they loved them so much!
I really can't say enough about WL CL. We loved our room. We had a bunk bed room with a view of Cinderella Castle and Wishes at night. It was perfect in every way.
We are booked YC CL for our upcoming trip in April, so it will be interesting to see how it compares. It was hard not booking WL again because we loved it so much, but we're on a quest to try all of the resorts.
For my family, WL CL was absolutely worth it!!! (I should probably add though that we had a 40% discount...and have one for YC as well....there is no way we would pay rack rate, it's just obscene). But it's a great experience with a good discount.