The green and red are decent, not nothing special. The xxxtra hot is awesome though. It's barely any hotter than the green but the flavor is great. The Caribbean is very good too.
I actually preferred El Yucateco's green and red habanero sauce over their "XXX-hot" type. XXX's flavor is just not appealing to me. IMO there's not too much of a difference in flavor with the green vs. red and the green is only just barely hotter of the two to me, but I like the relatively strong habanero flavor (and lack of vinegar--I hate that crap) that they both have. Never had the Caribbean one even though I'd like to try it, never seen it anywhere. Never seen any other El Yucateco sauces around here either for that matter.
Admittedly, so far I haven't got heavily into hot sauces, but El Yucateco's are some of my favorites. Valentina (regular and extra-hot) and Huy Fong Sriacha hot sauce are pretty good too... not really that hot, but pretty good tasting and best of all... no vinegar.
Tapatio really pissed me off... vinegar is nowhere listed in the ingredients, so I bought it (yes, for that reason), popped the cap, and BOOM! A whiff of vinegar! The catch? Both water and acetic acid were on the list of ingredients. As I later found out, those two chemicals--when combined--are also, more commonly known as...
...drumroll...
...vinegar!
Deceiving assholes, they'll never get another penny from me.
There's a specialized hot sauce shop that just opened up just down the road, but their stuff costs quite a bit and I'm afraid to get anything there because it probably mostly uses extracts and has a nasty, chemically flavor. And even worse, a lot of the stuff they carry is probably stupid hot, requiring little dabs on a freakin' toothpick to not go overboard, and that's just a poor way to add flavor.