Yes. Well, we've been thrilled. I mean I don't know how else to say it, except it's far exceeded our expectations, and I expect it will be for the next several years. The question for us is, as we knew it was the best asset out there, we waited 6 years to get it. And the founders and the team that has built it have remained and they're extraordinary. And just as I think we gave today about 10 million math questions a day tells you how important math is on a global scale. I mean, even when you're taking the sciences or medical, you need to know math. Even within music, math is relevant. So math is universal, even though everybody, particularly my daughters hated. But math matters. And so what did we learn? We didn't learn that math matters, we knew that. We didn't learn the math where it was great because we knew that. What we realized -- and what Andy has said call over call over call is when we acquire a company, we look for companies where our brand, our reach, our data, our technology, our commerce systems, our payment systems, our retention efforts, our CRM stuff, all could leverage -- be leveraged to grow those companies faster and make them more profitable. And that's exactly what's happened. We also -- when we acquired our writing company, we also have an ad system, which we use to monetize our writing products, which is why we're able to offer so much of the stuff that we do free. Well, that system has also been applied to the Mathway system, which increased viewability and increased CPMs. And so what we hoped would happen happened a lot faster than we thought. And I really credit the team for doing that, particularly the Mathway team for being so open to it. It's sad to say we haven't even met them in person yet. They're right outside there in Pennsylvania. And we haven't met them in person so they've been spectacular. So we know that when Chegg buys companies that have a great product market fit, that have been around for a while, that have been under-resourced that we can grow them faster and make them more profitable and relatively quickly, and that's where we have done the best with acquisitions.