Agreed. STP (who makes Noico) even posted online that there lowend STP Silver line was multiple decibels better than there standard Noico line.
Another problem with Noico is because it's so cheap it encourages the meathead mentality of "oh I can do 100% coverage or I can do multiple layers" which is NOT how sound deadener works. Full coverage comes from the myth that deadener blocks sound which it doesn't. It helps prevent the panels from vibrating (reasonance) but it doesn't actually block noise. Most people think "oh if I do full coverage i'll block the noise from coming it" when it doesn't work like that. You need something like MLV (mass loaded vinyl)
For most high quality deadenders 25-40% coverage is more than enough. You eventually get to the point of diminishing returns. Think of it like a drum cymbal, if I apply 25% coverage of highend deadener to the cymbal and then hit it with the drum stick the cymbal will hardly make any noise. Me adding 75% more coverage to that same cymbal might make it 5% quitier if even that. If I did 50-60% coverage of a lowend deadener it might realistically be louder than 25% of a highend deadener.
I'd personally use a higher quality deadener but less of it. Better results, less weight to the car, gurantee of no cheap fillers or smell, and might actually not cost more money when you factor in your buying less of it.
It's the same thing with high-end amps. People will act like your an idiot for not buying whatever forum boner budget knockoff is on the market but reality is the higher priced variant is better in the long run (amp will last 2-3x longer, can be wired lower, actually does rated power, and is less susceptible to over-heating)
TLDR: Pass on Noico and use a higher quality deadener. Your not actually saving money by buying it when you factor in the medicore results and extra amount needed for desired outcome
