Strengths: Perfect for heel strikers and neutral runners. Nice amount of cushioning which feel like they mould to the feet to give a personalised feel.
Weaknesses: Took me a few weeks to for my legs to get comfortable with them but now they are a beautiful ride. My feet were absolutely fine after doing the Paris marathon a few days ago.
Overall: My previous pair of shoes was the Asics Nimbus 12 which I found to be too soft and unstable under foot. Also the material near the toe tore after a couple of months. The glycerin 9 is a much better choice for me as they are more durable, fit like a glove, have good breathability and just the right amount of cushioning without being wobbly like the Nimbus. I'm a fan and I'm surprised the RW review only gave it 3.5