It is bloated with poor quality no name products but it's fine if you stick with known brands. Reviews do suck tho. Fake reviews have made the rating system is useless.
If the product is fulfilled by Amazon - which most are - because that is the only way to rank highly in searches.
Then it all goes into a bin at Amazon. Anyone claiming to sell the same exact product also goes into the same bin. When you buy that product then they pick one from the bin - official account or not