Excellent for travelers. I also found it convenient to use after meals at work or just before my dental visit. My only nitpick would be more capacity for longer cleaning.
For the past 2 months I see that it's the best investment I made for my teeth. My breath smells way better and I don't have that gritty feel around my teeth.
This would be great for traveling. I find I like the one we're the water is separate is a lot better and does a better job. I found this one to do a good job as well except for one area on my teeth where floss did a better job. Also note if you drop or knock it on the floor the interchangeable tips break easily as my husband accidentally knocked it on the floor and it broke so now we only have to one tip.
it does the expected job, but is very clumsy to handle. the design/size should be closer to that of an electric toothbrush connected to an external water resevoir.