As a regular, heavy, long-distance runner, I was looking around in detail for the right product. As an American, I wass used to many choices in the US, but in the UK there are only a fraction of options for jogging strollers. Furthermore, most comments and reviews did not seem to be from real runners. After careful review, we selected this one and could not be happier. The only other option that seemed good was the Baby Jogger Elite, but at £300 just seemed a little immpractical as a second stroller. In summary:
Performance: Glides very easily and smoothly. You don't feel like you are pushing 40+ pounds of baby and stroller at all. Haven't gone out for more than 1 - 1.5 hours yet, but so far, so good. Can't imagine there will be any issues for longer runs at all.
Comfort: Right height and positioning for runners. Baby likes it and sits happily. Falls asleep nearly every time. Don't be fooled by what looks to be a too basic seat reclining system. Baby can sit up nearly straight or recline fairly flat. the ride is very comfortable and shocks are muted significantly by the tires and rest of system.
Handling: As I said, it glides excellently. Steers very well, even with the front tire locked. In this position, you can navigate around most turns without having to lift the front tire. There is no breaking system, but seriously... is it necessary? There is a wrist strap to keep you tethered in, but I don't see a reason for a break... I am not running down any major hills and even if I were, I would just slow down for a bit.
Downside: Should be holes in the drink holders and change/wallet/phone tray for drainage. My phone was soaked after a heavy rain. Harness could also have comfortable strap pads, but I don't think this matters... baby doesn't seeem to notice. I have not figured out how to properly put on rain cover, but that may just be me. Baby's feet weere soaked after our run!
Overall: Great for the serious runner. You need big, off-road tires for comfort and handling. It glides well and performs perfectly as one would hope. I don't honestly understand how the top of the line models coudl be that much better. This product is a steal at its price. Good stroage space in front of you and underneath. Downsides are so minor as to be irrelevant for me.