Will never buy another kind of 1s. The difference is so obvious it should be illegal.
I tested 8 other brands of 1S batteries and the Nitro Nectar Gold was the best by far. To get the best you pay more. For my complete YouTube review and comparison on this battery please see the link at: https://www.youtube.com/watch?v=9D1TLPKhQP0&t=139s
Best 1S LiPo for woops
If you're used to flying other brands of 1S / 300s, you will need some adjustment time to get used to these cells - I use 10-15% less throttle when flying these which really throws off the muscle memory. By far the best performing pack out there as they hold voltage higher and longer than the rest (BetaFPV/RDQ/GNB) which easily adds 30-45 seconds of flight time on all my 65mm & 75mm whoops. My only regret is wasting money on all the other batteries and not investing in these right off the bat. Buy cheap, buy twice I guess.
Someone will probably do an in depth, technical review in the near future, so here's the short version: compared to BFPV300s, RDQ300s, GNB350s these provide a higher voltage for a longer time, less sag, and more available punch. Are they worth 2x the price? That depends on whether or not you want to fly the best!