You can buy your initial Soda Stream cylinder from us or from your closest retailer (35Euro)
These are much more cost effective than 16g canisters while still being portable and small enough to fit in the fridge if you are force carbonating.
if you are looking at using sodastream bottle with mini regulator ,you may like the idea of having the bottle and regulator remote from the keg,lets say you dont have to have the bottle hanging on the side of the keg, see the Remote Gas Line here
As you can see in the picture, by using either the steel disconnect with the 19L keg or the plastic disconnect with the 2,4,5 or 10L keg you still have a compact solution.
I would definitely buy again from iKegger. The quality of their products is top notch and the shipment was very fast. Having used their products for a while now I can confirm that they're also very durable.
Works perfectly. Absolutely no gas leaks (on the adapter side) Please follow their recommendation in determining whether you have a gas leak anywhere (soapy water). If I did not do this, I would have been -1 sodastream bottle the next day.