Spring vapor is one of my favorite he liquid suppliers great customer service, and fast shipping. Any way flavors I tried. Black label RY4 has got to be one of the best ry4s I have ever had. Carmelly not to sweet with slight vanilla on exhale. Fall harvest RY4 is what i am vaping right now i would give it a 6 out of 10. Don't reallt like the taste when inhaling but great after flavor. French vanilla is awesome one of the best vanillas I have had it is all my dad vapes. I tried black cherrry but is way to sweet for me great cherry taste though. I tried the peach he sent me a sample which he will do for regular customers but I just got done trying a mint flavor so I cant compare. I have a sample of his RY4 day and night which i am excited to try will comment once I do.