Is the LSD vendor FelixUK really that bad?

Hey, so I recently ordered 10x 100ug tabs from dream from a seller called FelixUK. He has a lot of reviews and the majority are 5 stars so I assumed these must be the shit, however after buying them I searched to see if there were any reddit reviews and apparently all his stuff his mainly overdosed. Is this true? If so I thought he was have much more bad reviews on his page.