I ordered this through Amazon. My friend had ordered his thru them as well. Both of these are from Royal Brew and are rather exceptional on the build quality. Very hefty feel for both, but it does feel more impressive on the 64 ounce capacity version. The half gallon one did have a sale going on, but not sure if it is still or not. Cost is $139 for it and $199 for the gallon one like what I got. It is fairly easy to put together, and the most difficult part of the assembly is getting the o-ring in place. I'll attach a photo later....Might make you laugh a little, you won't believe the size of the o-ring compared to where it goes!
As far as process of coffee making, they give a recipe for cold brew, that they would have you add water to.....BUT......I don't follow those directions!!!

I just use my concentrate with no undesirable side effects...other than maybe heart palpitations!!!


The taste of them is very cold brew like with plain nitrogen, and with nitrous it picks up a slightly sweeter characteristic. Both have an improved mouthfeel.....and although I haven't been able to confirm it, some of my "subjects" ( lol ) have reported feeling a little bit happier after enjoying the nitrous version!enjoy
The downer on this is the cartridges of N, or N2O. The gallon size will eat 4 N cartridges or 2 N2O cartridges at a time. It is halved for the 1/2 gallon size ( 2 N carts or 1 N2O cart ). You have to change out cartridges to accomplish this. Install one, shake it and let it set for 15 minutes and then repeat. Those cartridges come with a price that may make you say "Say What???" !!!
So my initial all in price was $248. That is the gallon size container, 20 N cartridges and 48 N2O. Already had the cold brew coffee equipment. This sucky tablet I am using currently won't allow me to share links, so I will see about adding some later.