Strengths: Fairly lightweight, good cushioning and stylish
Weaknesses: Not really any different to any great extent to a lot of other good running trainers, whereas the Lunartrainer was radical with the springy pads on the bottom, totally different to any other trainer and brilliant. Still don't understand why Nike changed the bottom and took away the springy pads. Also not as lightweight as the Lunartrainer either and the Lunartrainer was also a better fit, more midfoot support and toe room.
Overall: Why change a brilliant trainer and produce something a lot worse?