Experience with the connectivity of the DFSK Fourthing 4

Hello, I’m interested in the Fourthing 4 and I have a question about connectivity. I would particularly like to have a reliable hands-free device, the use of Google Maps and the music playback via Spotify. Has any of you already had experience with the system? Does everything work smoothly or are there restrictions (e.g. connection interruptions, poor voice quality on calls or problems with app compatibility)? Thank you in advance! Best regards