+ Delivery: for this price more than fair
+ Appearance: quality
+ Haptics: quality
+ Operating system: currently (4.2.2)
+ Processor performance: self Galaxy S4 users were surprised (..is better than my iPhone 4)
+ Battery: builds rapidly at first - but from about 70% it becomes a long-distance runner
+ The back camera is acceptable
+ Full access to Google Play Goals
+ Skype, WhatsApp etc. are totally unproblematic
+ Wi-Fi, Bluetooth problems
+ GPS: working properly
+ The part is simply fun
Display is vertically highly sensitive point of view. If you hold it in your hand, but it does not fall disturbing these margins resolution is acceptable.
Sound stage, flat - without dynamics (not for enthusiasts)
The overall impression:
For 100 euros you get a rounder which can do almost anything - but (not surprisingly) not everything is perfect.
Nevertheless, or perhaps for that I give it 5 stars for the Doogee DG300 and my buy recommendation.