I have this mobile phone contract (without number portability!) For only a few days and may yet report no negative, everything worked smoothly, from ordering from Amazon, over which as always fast delivery, easy activation of the SIM card and ultimately commissioning - perfect and then to a currently unbeatable in Germany Price of monthly 4.95 - unbeatable (surfing, calls and SMS-s) in the circle of friends they wanted to me not abnehemen this Agreement to the favorable conditions. I on my part can so far this product just absolutely recommend - provided of course that the future course of the contract (monthly billing, network stability, contracted Inclusivminuten and amounts of data and the limit speed information etc.) No adverse experiences occur, I will check and modify my review even at need.