I've tried several Acid cigars, and in a nutshell: Either you like Drew Estate's unique flavor (resulting from curing in a "secret mixture of oils and herbs") or you don't. All the Acids I've tried share a similar but interesting flavor - I don't think he varies the curing - it's all the same formula from what I can tell.
That being said, I do enjoy that "secret blend" on occasion. I don't enjoy the fact that he often adds a flavored tincture to the head of his cigars - which smacks of Swisher Sweets - and in my book a cigar should stand on its own, no silly gimmicks. Short reviews:
Acid Liquid: I've smoked several of these and they tend to have a pleasingly open draw and nice flavor, on the mild side and getting stronger as you smoke. Again, either you like the oils and spices or you don't. A straightforward cigar with no sugar painted on the head.
Acid Blondie: Tastes like a miniature Liquid, but a tighter draw and milder at first. The tip is flavored (yuck!) but the smoke tastes good. This is a narrow, 4-inch long cigar which bored me at first but became wonderfully thick and flavorful in the last 2 inches. I wished it would go on. I managed to get nearly 40 minutes out of it by nubbing.
Acid "Juicy Lucy" - the flavored tip wiped out any possibility of actually tasting the smoke in this itsy-bitsy cigar. I've heard it's good. Good luck tasting anything but sugar.
Java robusto by Drew Estate and Rocky Patel - Not really an "Acid" blend, I guess, but a cousin of the family. Again, the flavored tip ruined this for me. I could sense the smoke had some nice coffee flavor lurking forlornly beneath - but my tongue had fake honey all over it, so I could only surmise.
Acid Opulence 3 robusto - not exactly as "rich and chewy" as the blurb at Cigars International would indicate. It's a dark-black bomber that is surprisingly mild and rather high priced. Again, that pesky flavored tip ruins everything. Get rid of it please, Mr. Drew!
Acid Ltd. Def Sea (6.0" x 52) - a nicely rolled torpedo which tastes- guess what - almost exactly like the Acid Liquid but a bit more refined. No sugar on the tip - so this actually tastes like a real cigar.
Summary: If you're in the mood for an Acid (think: cigar meets incense) almost any of them will do. I prefer the Liquid and Def Sea because they aren't painted with sugar tips.