That question is more difficult to answer than it may seem. Connect does a great job of tracking and monitoring scores with Captivate content, but it shouldn't be called an LMS... Maybe LMS light is a better term.
Captivate should report well to any LMS though, so the better question is do you need an LMS, and how big is your budget for an LMS? I won't get into pricing here, as that is not a forum appropriate conversation, and you shouldn't say your budge here .
I'll contact you off forum and we can discuss how Connect may or may not fit into your plans for Captivate.