FWIW, we bought a SodaStream online at the beginning of the pandemic, when the economical store brand mineral water we like disappeared from shelves. We’re happy with the SodaStream so far.
We already filtered our tap water before drinking—our tap water does not taste great—so adding the extra step of carbonating has been simple and easy for us. And we don’t buy mineral water as our “treat” to sip with dinner any more. I’m not lugging as much recycling to the curb as a result.
I have yet to exchange a CO2 cartridge in-store because we’re only on our second cartridge. We prefer the lightest carbonation level so the cartridge seems to last longer than the 60 liters rated.
I do wish that the SodaStream Fizzi model had a glass carbonation bottle option. Only plastic.
The company has had trouble keeping up with demand in these times, so I did have to check the website a few times to get a second CO2 canister (so one canister in use, one available to refill).
