I grew a few plants each of three types of reduced-heat habaneros: Habanada, Roulette and Primero. This is my review of Roulette. I am also posting reviews of the other two.
The germination was very poor. I had them in a covered tray in a sunny window with bottom heat. Two weeks after planting not a single one had come up and I was almost ready to give up, but eventually a few small, weak plants came up and I was able to continue the comparison.
The catalog color codes these as “Mild,” and lists them on the “Barely Warm” page. For the most part, I agree. But once in a while, I would eat a pepper that I thought came from a Roulette plant, and the heat would be TERRIBLE. I don't know; I also grew Primero peppers which are similar but very hot. Maybe occasionally I just confused a Roulette pepper with a Primero. Or, maybe it is like the Takara Shishito pepper, where the catalog says that ten percent of its fruits are spicy hot. Maybe ten percent of Roulette peppers are spicy hot; I don’t know. Anyway, occasionally I burned my mouth on a Roulette pepper. Could that be where the name comes from: it’s a gamble?
But most Roulette pepper have no (or almost no heat). Still, I like the flavor of the Habanada peppers better. The Habanada peppers are sweeter and crunchier and have more flavor. The Roulette peppers are a bit bland in comparison. As the catalog says, these plants are very high yielding, but I found all three reduced-heat habaneros to be high yielding.