Customers say this vanilla coffee concentrate is convenient and delicious, with many praising its ease of use for quick morning coffee preparation. Most reviews highlight the smooth, rich flavor that's not bitter or acidic. Many appreciate the customizable strength and versatility for making various drinks like iced lattes and hot coffee. Common feedback includes satisfaction with the attractive pink packaging and good value, as one bottle makes multiple servings. While most love the vanilla flavor, some find it subtle or prefer stronger vanilla taste. A few mention the concentrate can be very strong and requires careful measuring to avoid bitterness.