Love the efficiency and compact nature of this individual soda maker. Would love if the design and canisters could be enhanced to last more than a single-use. You need one cartridge per bottle.This works really well, adds a lot of carbonation. It isn’t that efficient to use an entire CO2 for just one drink, but you can buy them in bulk for cheap.Goes through a lot of co2 cartridges doesn't fill all the way up and is a bit of a pain to break down and clean.This is easy to use . I don't like flavored stuff so I use it for sparkling water. I fill it up and take it with me to use when I am ready for it. It is the perfect serving size for me as well.Great product! So easy to use! The cartridges are single use so they aren’t exactly the cheapest option, but it’s still cheaper than buying soda. I like that I can take it on picnics and make fresh carbonated water in the spot since it doesn’t have to be plugged in or anything.Bought this as a gift and the recipient absolutely loves it! Great alternative to costly tabletop soda streams.Sometimes the seal on the cap is so strong it is difficult to unscrew it, otherwise it is easy to use.I absolutely love this soda maker, I use it to create fizzy everything! Iced tea, lemonade, kool aid . I just love this, it’s easy to use it’s not heavy I put it in my bag with the gas in the top fill it when I’m ready and twist!!!! (Water only, then you can mix the seltzer water to make unique drinks or just enjoy)