Instruct: Classify the given review into positive or negative sentiment.
Query: Poor quality and construction

According to their advertisement, it's the #1 selling humidifier in Germany. Germans would not put up with it's poor quality and construction. I maintained it as instructed but after a few uses, it started leaking. Luckily I live relatively close and can bring it to their factory. The cap on the tank is leaking. It's a $5.00 part, but costs $7.95 to ship????? It's light-weight plastic and no more than 4in in diameter. This was the most expensive portable humidifier, which goes to show that you don't always get what you paid for. The carpeting and hardwood floors are soaked. Needless to say that I would NOT recommend Venta Sonic.