I have been a bit of a chili pepper, hot spice and hot sauce afficionado for a few decades. I grow many kinds of chilis in my garden and do lots of different things with them.
I remember seeing the Huy Fong Sriracha in a store about 10 years ago and thinking that it was unusually inexpensive given the s8ze of the bottle. Upon first use, I was surprised... almost floored. I remember thinking that this is the best chili sauce I have ever tasted.
I brought it to work, to family gatherings and gave away countless bottles. It seems like most people that like a hot spice tend to like the sauce.
I am of the opinion that lots of people know the Huy Fong botle, brand and taste. I liken it to Grey Poupon, one of the best mustards money can buy--ok Stadium Mustard is better IMO, but GP is still A+ material.
I have a feeling that Huy Fong has little to worry about. I have tried several competetors (one was3x the price) and they are all inferior.