Positives:
1. Accuracy in measurements (comparison with a professional scale)
2. Quality construction.
3. No need to buy a battery, it has an integrated one.
4. Rechargeable battery with cable. (I will come back on how long it lasts without charging)
5. Many details and measurements.

I have had this scale for 5 days. So far, it has made a very good impression on me, as it is very easy to use. Setting up the application was not difficult at all, and I created two user profiles in no time. The measurements seem quite accurate (in 3 consecutive measurements, it showed the same result). The mobile phone needs to be close to the scale when taking measurements, in order to transmit the data via Bluetooth. The screen is large and clear, and one of the very positive aspects is that it charges with a mini USB and not with batteries (my previous scale had broken and kept showing a "low battery" message, even though I had changed the batteries 3 times in a span of 2 weeks). If anything negative comes up during use, I will provide an update.

Although I had no previous experience with smart scales and this particular one is a very recent purchase for me to have a complete opinion, the first impressions are very positive. Nice design, very easy to use both the scale and the app, satisfactory accuracy and with enough measurements. It is rechargeable and the package includes a USB cable. It may be a little heavier to carry than I would like and gives me the impression that it is somewhat fragile, but this may be just my idea. I would also like it if the app had more instructions-explanations regarding what exactly some measurements mean and some basic steps on how to achieve the desired values. Overall, for the 55 euros I paid, I am completely satisfied - and more!