Polk magnifi mini sound bar Super Disappointment

Bought this unit on retailer recommendation to improve sound quality. Super disappointed, Did Isay Super disappointed.... frequently turn on TV, sound bar fails to operate, could be 20 minutes later sound kicks in. Subwoofer barely noticeable. Turn off TV, come back next day, volume settings very low, zero dependability. Polk reputation fails on this one. Wish I could get a refund.