First of all: The Samsung S3100 is a great phone for its price and would like to have earned from me 5 stars, if it does not therefore come with a manual so windy. This is just a joke! Can not imagine that there are mobile phone users who are still growing up in times of Wählscheibentelefons and have not learned to operate a mobile phone in kindergarten the marketing folks at Samsung? Luckily I have two teenage sons who can help me. But alas, it is not so well versed and has no guide! The Samsung S3100 has mE excellent voice quality a super reception (with every other cell phone I had been in our home difficulties), the battery life is fine (standby 10 days; talktime ok), the camera is of course weak, but enough for snapshots and for "real" photos one should in any case use a "real" camera. Who real "sausage fingers" or bad eyes, has, however, should keep away from it, because the keys are really rather small. However, since they are slightly raised, they can still make good. The oft-mentioned key-cracking does not bother me personally. So at least I know that I have the key actually caught. As a pure Telefoniererin and Simserin I have no idea, as far as the performance of mobile phones with the mobile Internet. Unlike the fashionable smart phones it also has in his pockets skinny jeans (barely) space. Conclusion: Especially for people who still want to use as a phone, the phone rather than a multimedia device, it is highly recommended.