i had a 90" television that was in a home with heavy cigarette smokers, 5 years, never cleaned. no joke, it took about 10 minutes and only 4 wipes and every bit of tar, dust, and gunk was gone. no lingering smell on my hands during use or after washing. the little container has a gummy closure which works wonderfully so the wipes don't dry out.
the only drawback is they really are large, and at the price point, it feels like a waste to use one of these for a small job like a laptop, tablet, or phone. so i do only use them on house cleaning days when i'll clean multiples televisions and devices at one time.