Positives:
(+) Significantly better reception. In particular, the data reception in difficult situations often still good if the Samsung (on the same network) already sweeps the sails. Build my prejudice that only Nokia, Motorola and BlackBerry devices with good transmission and reception, was confirmed here. In particular, Motorola has indeed here the experience of several decades ...
(+) Dual SIM. According to Internet research, this is the best dual SIM phone in the market. And in practice, it works very well. Received both SIM cards, even on different networks, without it seems to consume more battery. One can quite easily configure when which SIM is used (data, SMS, telephony, separated by contact, etc.)
(+) Battery endurance. While the battery of the Samsung has a higher capacity, but the Motorola holds 10-20% longer
(+) Less annoying preloaded apps
(+) Android 5 is supported in the future.
(+) Value for money very good.
Neutral:
(0) screen resolution is lower than the Samsung, but good enough to be able to read small text. In everyday driving a disadvantage.
(0) Camera has nominally although at a lower resolution (8 MP), but it's hardly noticeable. Insbsondere flash photography is better than the Samsung.
Negatives:
(-) The mobile phone is much heavier than an S4. It feels too heavy.
(-) Although Motorola prides itself deliver a largely unchanged Android, the Android-native SIP (internet) telephony has been unfortunately wegkonfiguriert by Motorola, while it is present in Samsung.
(-) Chill is the mobile phone a little slower than the Samsung, probably because the processor is weaker.
All in all a very good buy, especially at the unbeatable price.