Bike and parts were packed very well and the pieces were machined to fit perfectly. Only 12 pieces to assemble (14 if you count the pedal straps) Instructions were clear. Easy to move at 53 lbs. Having the screws and bolts numbered on a cardboard holder to match the written instructions was very helpful. Extremely pleased with the purchase and quality. Had to contact seller with a side issue and was assisted via email almost immediately. Seat locks firmly when enough pressure is applied downward. My cell phone found and connected to the Bluetooth immediately, but have not used the programs yet. My only wish would be an optional backlit display with an A/C connection. We're over 72 and it would be worth the extra cost, and very simple to install and replace the existing one. A great product at a great price.