Same. But I switched to a (German) service that mails cylinders. https://sodabaer.de/

aarke

I got an Aarke instead because I liked the design, so now I just need to replace my current sodastream cartridge with an offbrand one…

Get a nice bar-sized cylinder of CO2 (sometimes called beer gas) and a 15 dollar adapter. Get you that (nearly) guilt-free bubbly water by never sending them a cent for gas!

Not really any more, mostly though because other companies got into the business and aren’t charging an arm and a leg for carbon dioxide. Other manufacturers also aren’t pointlessly incompatible to each other.

Sparkling water, of course, is still ridiculously popular over here, and carbonating at home is convenient. Then, though: Tap water + soda stream co2 is more expensive than store-brand bottled water.