"The atmosphere is great. The staff is friendly. The coffee (latte I ordered is also great, but there is an unknwon white plastic in the coffee. I am very disappointed, I never have such experience anywhere else. I waited for quite some time to get the coffee because there are a lot of people. I really hope this won't happen again."

"Nice coffee shop next to Palo Alto airport. It is very cozy inside, and it also has outdoor seating. The butterscotch latte is good. The almond croissant is good but a bit dry. The tonic coffee is good."

"The red velvet mocha coffee was AMAZING! We also had the braided chocolate pastry (see pics). Stop in or do what we did and go a little bit out of your way because the coffee is well worth your time."

"I devoured the tomato prosciutto tartine—it was amazing! The ricotta, arugula, red onion slivers, and balsamic vinegar all came together perfectly (full disclosure: I’m obsessed with arugula, so that might tip the scales for me 😄). I also had a latte, which hits just right for the Asian palate—smooth, creamy, well-balanced, and not bitter at all. This was the perfect quick brunch before heading out for a walk in the Baylands! Stopping by also gave me a chance to check out the flight school next door too, which I've been putting off for months. Cloud9 Coffee is the gateway to great coffee and maybe new adventures!"

"Pretty awesome. Line moves quickly and the staff is very kind and polite. In LA we have a saying that if there’s a line it’s worth it… jokes aside high quality cafe drinks. You can walk the Baylands before or after so it makes for a great location."