Instruct: Classify Amazon reviews into positive or negative sentiment
Query: THREE Major SHORTCOMINGS

THREE things turned me off & resulted in me buying a COMPETITORS PRODUCT:1. Water isn't pumped up to the TOP of the filter like COMPETITOR PRODUCTS. Several reviewers compensate for the top of the filter being dry by rotating it 180 each time they fill the jug. This wouldn't be necessary IF there was a pump that pumped water from the tank to the TOP of the filter.2. The CONSENSUS of reviewers was UNFAVORABLE in terms of CUSTOMER SERVICE & PARTS3. HOT AIR is on the ceiling & cooler air is on the floor. This unit blows air HORIZONTALLY, instead of vertically. COMPETITOR PRODUCTS blow the air vertically.