Opinions - Different N2O brands - different effects?

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Looking through online stores which sell poppers, I can see that they describe nitrites products differently:

Like this:

"Jungle juice":
The "Platinum" Jungle Juice truly is a very unique product. Specially strained on an activated charcoal filter and double-distilled, this juice delivers even more purity and strength!

"Rush"
Rush to get the world's favourite poppers brand at an unbeatable price! We've got the genuine, export-strength Rush formula. It sure does the job!

and the list goes on ....

Has anyone tried different brands? Is nitries nitries no matter what .. So it's just false commercial to call one soooooo good in comparation to others?


EDIT: Found out that N²O and Amyl Nitrates aren't same.... Well the question is about the "poppers". (could a mod move to they correct sub forum?)

Does butyl nitrite, isobutyl nitrite, isopropyl nitrite, ethyl nitrite, methyl nitrite etc. have different effects? Although they are all alkyl Nirites..

EDIT as they both pointed out, they are alkyl nitrites, not Amyl ...