Best Bunn Coffee Maker Review (2019 Updated) - Ag Ferrari BUNN GRB Velocity Brew 10-Cup Home Coffee Brewer. Presentation. This is an older model coffee maker than some of the others we have already looked at. However, even “back then”, Bunn brewers already featured most of the elements that make the more recent versions so successful – three-minute brewing, non-drip spout, etc.