Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent product, better than the portable ones

I wasn't sure wich one to buy... this one, or the portable one. I live in Brazil, and someone was bringing it for me, so I decided to buy them both. This one and a portable one from Panasonic, and sell the one I like less. Well, I will keep them both. Really like them. But this one is better... Doesn't have batteries, has more power (you never use the top power), and you don't have to refill the water reservoir (it's the perfect amount of water for an excellent cleaning). If you are only buying one, and for your home, you should buy this one. The portable one is good for travelling or to leave at work (that's what I am going to do). It has a good water preasure (but not as good as the full waterpik), but his water reservoir has to be refilled again for a complete dental wash. Or, you should do like me, and buy them both... they have a discount for that !!