believe it or not, i actually thought Casablanca and 555 Exotic tasted very similar when i first tried them. i had ordered them together and tried them both for the first time one after the other. i kept alternating toots between the 555E and Casa. i dont know if some of the flavors from the previous one were still on my tongue but i know that at the time they both tasted very similar.
all it took was a day or two of puffin just one of them for me to realize how incredibly different they truly are. since then, i have noticed the same thing with other juices when i taste several in a row. its much more difficult for me to determine the true flavor without puffing one flavor exclusively for a period of time.
im not saying this is what happend to you, OP, but i wouldnt rule it out based on what youve said so far.
Aw, yeah! I just ordered my first bottle of Casa and 555 Exotic is my all day vape. If it's anything like 555E, I would be a happy camper.
But to the OP, I strongly disliked RY4 when I first tried it. I got that Grandma's perfume taste as well. I threw it in a box and forgot about until I ran out of my 555E. Going back to it after a month or so, I found that either my taste had changed or it had steeped into something different. I really enjoy it. It's not my favorite BWB brew, but I will certainly order it again if I have the chance
Of course, you may not like it at all and that's cool. Taste is very subjective! But I would let it sit a little more before you give up on it. And as others mentioned, that stuff will sell like hot cakes on the classifieds if you still don't like it.