FANTASTIC! Love the plasmawave odor sensor light. The 4 speeds are ideal and quiet (even whisper quiet). The 4th speed is great for emergencies though louder. LOVE the fact that the air intake is to the front and sides. The Unit is a fair size but lovely in color and blends well with the decor. I appreciate the off- night display. The front panel is easy to remove. The washable pre-filter is easy to maintain and excellent quality.  I cannot say enough to express my total satisfaction about my Winix 5300-2. A system totally well thought of.