It's amazing what a spring reverb can do. Adding this to my Blues Cube (digital reverb built in) really changes the character to a more vintage and organic sound with a real sense of space that digital reverb cannot produce.
Taking into account the size of the pedal, the sound of the reverb is really good and offers a lot of options for tweaking. It can be a little harsh at times, even with the tone down, but that is likely due to the short springs.
The tremolo, especially in brownface mode is beautiful and the combination with reverb magical. I sold my Mooer Trelicopter right away, no comparison. My only complaint is that the adjustments of speed and depth are not linear and it can be a pain to get exactly the settings you're looking for, but you learn to live with that.
The build quality is clearly excellent and the dampening really well made. If your amp doens't have spring reverb, I absolutely recommend this pedal! The price can seem a little steep, but you get 3 effects in one (also a nice boost) and it really makes a huge difference in your sound.