Dont know about large file size, but the problem with google drive is it is the most memory eating application. It require around 150 MB RAM when not synching. As compared to dropbox require only 40. Even if it has more space for free users i will not use it. Dropbox primary and SkyDrive a secondary are my choices.
Not complaining about the price of the RAM but it is about the thing, how much load the Google apps create on system resources. And that is because it always try to track each and every user activity.
That doesn't matter. If you can be bothered to count megabytes of RAM, you already have a shortage, with or without Google Drive (or Dropbox, for that matter).