Google Classroom: Ditch your current LMS?

Google Classroom is here... is it worth ditching your current LMS? Maybe, but there are some caveats:

1) It is not an LMS: You need to use other tools to do things like online quizzes, discussion forums, and a calendar.
2) Grading can be difficult: I have tried several different methods, including Goobric, but none of them seem to streamline the process
3) Stream: While some people seem to praise the "stream" format that mimics social media, it does not allow for flexibility. Additionally, there is no "tagging" function, so everything in the stream belongs in the same category.

However, there are some unexpected things that Google Classroom has provided:
1) Easier shared folders: Things I used to do with shared folders, I can do with Google Classroom in an interface that makes both sharing files and finding files more easy and intuitive.
2) "Turning in" - Once students turn files in, they temporarily lose editing privileges. This allows you to have a due date without files getting later additions.

I am still learning the ins and outs, so this are just some preliminary thoughts, but so far, so good. I am still not giving up my LMS, but I am starting to supplement it using Google Classroom.