I find most of the Syntakt examples and tracks I listened to sound great. Some tracks sound warm and polished, others totally scrambled and destructive, but they all sound clear, distinct and “professional”, as if they were mixed in a studio already.
The different sound palets suprise me a bit, as you don’t have as much tweakable parameters as seen on other synths as the DN for example, but it seems like the amount / combination of digital+analog machines and the analog fx guarantee PLENTY of sound variations possible.