We drink tons of seltzer, and even though seltzer is usually the cheapest carbonated drink in the grocery store, it’s a pain lugging 3-4 bottles home every week. So we got ourselves a soda stream, and we love it. Very convenient. We have less waste, and we never have to drink tap water with our dinner. Hooray!
I’m not a huge fan of the flavors, we typically make seltzer than add it to a half cup of fruit juice, which is usually too sweet anyway.
My recommendation is to buy it at bed bath and beyond with one of those 20% off coupons, I love those things.