Review title is so much smaller than the description [SEP] when i bought this I was considering this or one of the all in one handheld.  glad I went with this.<br />As you can see in the picture,this is much more compact than the photos the company provides. Not super compact but fits on my bathroom counter nicely.<br />For setup, charge first.  You have to take the cable out of the back to get it to work. The tank looks pretty small, but it goes a long way.  I use this about every other night and I have not recharged the battery or added more water except when I wanted the water to be warm. I have sensitive gums and the warm water seems to be less harsh than cold water.<br />I have stayed on the lowest setting and it gets out a lot of gunk.  This will make a mess! if you close your mouth then you are pretty good but if you open your mouth water goes everywhere. there is a button on the handle to turn the water off (maybe I will use it when i clean my teeth).<br />this is pretty loud when you run it, not sure if i would want to use it with other people too close.  but if you want to travel with this, its pretty compact and has a little carry bag. most of the items store in the lid so that is pretty handy.<br />if you have been looking for a water pik type device, give this a try.  use if for a couple weeks and see what you think!