I believe this is definitely the best phaser pedal one can buy period. For me anyway, a phaser is not an effects pedal I use often and therefore don't have the money to spend on an expensive pedal I'll use once in a blue moon. For this reason, it's simply the best in it's class.
There's no way you'll get better in this price bracket, this pedal is awesome, it's made out of real metal, has a very sturdy construction and even looks great too. The great part is, it can accept a battery or DC 9V power, which some cheap pedals cannot, it can also has a much nicer knob compared to even the MXR pedals it's clearly modeled after. This pedal really is built like a tank and will take quite a beating.
Now onto the sound, in this regard it does exactly what it says on the tin, it's a phaser, nothing more, nothing less, the single speed control has a nice progressive control, from extremely slow sweep speed to way too fast, so you should find the sweep speed you need. As for the effect itself, it sounds just as good as a phase 90 to my ears, although I've never had them side by side yet and gives a great lead sound effect, I couldn't ask for more at this price.
Although there is just one thing that bugs me about this pedal I must mention, when I'm using it on it's own, or with other pedals on the same power supply it creates very little electrical noise, however I have a Blackstar HT-Metal Pedal which I use and has it's own 22V power supply and for some reason if both of these pedals are in the signal chain I get loads of electrical noise whenever the phaser is on, none of my other pedals have this problem and it occurs if the phaser is on battery or mains power. Just thought I should mention it in case anyone has a higher voltage pedal like that in their chain.
In conclusion though, this is another great product from Thomann that can provide great enjoyment.