comparable to the basic waterpik portable with a few improvements and extras [SEP] this unit is comparable to my very basic travel waterpik flosser in fact it has several features that the basic model lacks for around the same price this unit has three speeds whereas the entry level waterpik only has one the fastest speed is comparable with the one speed on my waterpik and it s the only speed i need this unit has a charge light blinks until charged while there is no such light on the comparably priced waterpik this device has about the same sized reservoir as the waterpik but because of the design it s on the bottom as opposed to along the sides of the unit the result being that it makes it a lot bulkier which is unfortunate in a travel water flosser unfortunately there is no advantage to this design as like the waterpik it begins to stop pumping water as the tank gets lower forcing the user to keep the unit vertical in order to get to the water at the very bottom of the reservoir which can become quite awkward while trying to get around the teeth and gums i ve owned several of these and to be fair they all suffer from this same problemone more thing this unit comes with a nice case and a stash of attachments which are usually found in home units and don t generally come with portable units none of which i have much use for but i guess it s good to know they re there it does include two of the standard water flosser adaptors so two people can use itthe only thing that remains to be seen is how long this puppy will last this is my travel water flosser i ll report back should something ontoward occur or if it continues to work well