We bought a Mango Point AR at the end of past December with these issues: Problems derived from pre-shipping assembly: - The chain was incorrectly closed. The locking pin was out of place, so the chain was partially open (check the picture). More than a failure in the drive transmission, it's quite unsafe to ride with a chain in that condition. - The brakes had been attached in place but they hadn't been set up. There was no brake performance at all. I know that disc brakes need some use to bed in and increase their performance, but that is imposible to do when you pull the lever till the end and the reduction of speed is barely noticeably. As you can understand, this is a big issue regarding the safety of the bike. Problems derived from the lack of proper protection of the bike for transport: - Drop out hanger was bent, which is causing shifting malfunction of the rear gearing - Front disc rotor was bent, so the disc makes a metallic sound every lap - Rear rim slightly untrue, but this is the least of the problems. I sent an email to Mango and they quickly reply and send a box with the following material: - A new disc brake - A new chain - A new Tiagra rear derailleur, instead of a drop out hanger Now that the bike has been fixed, my wife is happy with it and she has done over 600km with no problems. In general I think Mango can make great bicycles for the money but they need to put more attention to the assembly and packaging. I hope the company improves, offering well-rounded bikes for a reasonable price.