Hi, I have the Baby Brezza and love it! Besides the fact that the Brezza automatically steams, blends and purees all-in-one step, it's also very convenient to use and user-friendly.
In my opinion, the Baby Brezza is better than the Bullet because there is no transfer of food, no stop and start, and no waiting for a timer (then forgetting what you were doing and leaving your steamed food in the unit for hours).
You can also defrost and/or reheat leftover baby food after storing it in the convenient storage containers. It's also very easy to clean up because the bowl and blade are dishwasher safe.
The only con is that you need to get the Baby Brezza Prima if you want to make a bigger batch of 4 cups because the Baby Brezza One Step Maker makes a batch of 2 1/2 cups only.