For real delay work I already have the NUX duotime, but I wanted another one to just thicken the sound. I chose the Flamma mainly for the extremely short delay time (down to only 5 ms, at which you don't you actually hear a delay). Of course, price mattered as well.
It also has three modes, but for my purposes that doesn'matter.
It doesn't add noise and also switches silently.
The pots for level and feedback are really tiny (though not impossibly so), for that I deducted one star from handling.
Should that pedal ever break (that's doubtful) or be stolen, I will not hesitate to buy it again.