This pedal i exactly what is says it is. A simple, two-control analog flanger pedal. And that's precisely what it delivers.
I use this pedal with guitar sounds that would best be matched with rock from the 70's all through the 90's, which means it gets used quite alot. I've been having some difficulties with getting it to actually fatten up the sound as some flangers tend to do, but other than that it precisely does what it's supposed to.
The pedal itself is sturdy as all hell and won't break down in the first place. The knobs feel nice to turn and overall like a quality build.
One negative would be the lack of customisability of the flange itself, but I guess you would have to perhaps move up to a different pricerange for that.
My concensus is that it's a wonderful pedal that does exactly what it's supposed to do.