We 100% have had issues with larger repo's in the past while we were still hosted on a stand-alone data centre. Since finishing our migration to AWS ~12 months ago, all stability and performance metrics are substantially improved.
Full disclosure, we do still have some work to do in terms of supporting very large repo's (>10GB non-LFS) - but those scenarios are still handled relatively gracefully.
https://bitbucket.org/blog/bitbucket-cloud-has-landed-in-aws
Full disclosure, we do still have some work to do in terms of supporting very large repo's (>10GB non-LFS) - but those scenarios are still handled relatively gracefully.