An excellent amount of features and the cool vintage look. The patches and knobs provide almost endless possibilities. Usability is decent too, the keys are quite tiny and the knobs feel a bit cheap, but otherwise really easy and fun to use. Would have been an amazing synth for this price, but...
...It's really noisy! When you turn off both oscillators, you can hear a prominent white noise. And that constant white noise will mix with every sound you create. Basically impossible to make smooth sounds, everything sounds distorted. It's as if the synth had two white noise generators, with no way to turn off the second one.
After doing some research online, I found two good explanations for the noise: badly designed filter that amplifies noise, and cheap Chinese components which increase it even further. Some people call its noisy, distorted signature sound "an amazing feature", but remember that not everyone is into music that sounds like it was played through a broken radio.
It's a shame I couldn't find a warning about the noise beforehand, very few people mention it in their reviews. Loving analog sounds is not equal to loving constant prominent white noise, this synth is definitely not for everyone. Unfortunately I will have to return the synth.
I only recommend this to people who are planning to make music such as punk, metal, hardcore techno and ambient noise/drone. Or anyone who simply loves noisy and distorted sounds.