I purchased the Crown Berkey last year, and since then 90% of what I have drank has gone through a Berkey filter. I have found Berkey to be an excellent filter, everything I have put through it has come out tasting excellent. This includes sketchy well water that may or may not have gone through a reverse osmosis filter.This summer I have done a lot more traveling, and needed a way to get filtered water on the road without carrying around gallons and gallons of pre-filtered water. Enter the Go Berkey. I considered the Travel Berkey, but wanted something a little more compact in case I had to get on an airplane.The Go Berkey comes with the upper chamber, the filter and everything needed to attach it, and the lower chamber. It also comes with a water bottle with a filter in it, and the Berkey Primer (which Berkey now includes with all Go Berkey kits as of the beginning of 2017 according to their website). Finally, in order to hold it all together it comes with a very nice padded carrying case.The filter assembly assembles just like any other Berkey filter system (first picture). The filter goes in the top chamber (second picture), and sticks through a hole into the bottom chamber. Water is poured in the top and slowly drains through the filter to the bottom chamber. The capacity is not much, but I think it is an acceptable trade off for the portability.For travel, you can flip the top chamber over and store it inside the bottom. There is no need to remove the filter (third picture). The cap also fits on the bottom of the bottom chamber, leading to a very nice, compact little package. This all goes inside the bag, which has enough capacity for the filter assembly as well as the water bottle and the primer.Three bag is quite roomy, there is no need to cram everything in (fourth picture). It also is sturdy enough to stand up on its own (fifth picture). I could have done without a pocket for the water bottle to save a little room overall, but that is just a design choice, off they didn't include it somebody would complain that there wasn't a pocket for it. I have confidence that, if packed carefully, it will be protected while traveling.The priming tool is a very nice inclusion (sixth picture). If you use Berkey filters in any way you should have one. It really works a lot better then the standard way Berkey suggests that you prime your filters. It is a two way primer, so you can both prime and purge filters (you probably want to purge them before traveling or long term storage to avoid mold buildup, although I have no idea if this nasty reduce filter lifespan). I found the easiest way to prime the filters was to install it in the top chamber like you are going to use it, but to prime it from below to start the water flow.The included water bottle is not really that great, I have seen countless ones just like it in outdoor stores. It is not my preferred type of filter, it requires you to suck water through the filter, which is a lot more work then you might think. Ultimately it is a wash for me, I don't really care that they included it, I ultimately bought the kit for the Berkey. Maybe I will eventually find a use for it, probably just as a backup backup filter in my truck for emergencies.I am quite pleased with the Go Berkey, I feel like I got my money worth (sort of, Berkeys are quite spendy, they all seem about 1/3 more expensive then they should be). If you are looking to get into Berkey, this would be a great way to try them out, and could serve as a main drinking water filter if you are patient (at least until you break down and but a bigger one).