Great question!
1. We sync as fast as every minute, whereas airbyte syncs at least every hour. This makes the Google Sheet a way less useful read/write tool, and can also lead to a ton of merge conflicts if you're trying to set up a two-way sync.
2. On that note: Bracket is built for two-way syncing, with handling for merge conflicts built in. That way, you're in control of which source wins race conditions.
3. We have field level controls. For example, some data in the google sheet can be read-only while others are read & write
4. It's at least twice the work (often more!) to set up and manage two pipelines instead of one -- almost like having one email address for sending emails and another for receiving them
5. Airbyte does not support transformations for G Sheets currently, whereas with Bracket you can write a SQL query to transform your data from Postgres to Sheets
