"Before my daughter was born, I spent many hours researching jogging strollers. She is my fourth child, and I've been through several joggers as they have evolved over the last decade. I am a serious runner, who competes regularly in long distance races. So I needed something to keep up with my training program. The Terrain has not disappointed. I have used it regularly with my daughter since she was able to come along for the ride. The front wheel locks in place, but has a small amount of wiggle room for uneven pavement or grass. Other than occasional shaking, when the front wheel needs a moment to restabilize after a bump, the ride is extremely smooth. There are 2 pockets for my water bottles, and plenty of storage underneath for blankets and toys--even the occasional quick trip to the grocery store. You can easily stash a small bag of groceries underneath, or cover up your goods from a splash of rain with the zippered pockets. The handle bar adjusts, so that different drivers can all push comfortably. And for storage, the back wheels pop off with an easy 1-2-3. What's best, and what you won't find in competitors like the Bob, is that the seat reclines fully, so that you can take your little one out before she can sit up (check with your pediatrician of course!). Using the fully flat seat also means that your babe can sleep soundly from a very young age in the comfort of the 5-point harness, and you don't have to worry about the dreaded head droop that can happen when they snooze. Note: I also purchased the carrycot, or bassinet, which attaches quite nicely to the frame, so that I was using the Terrain as soon as baby was born. This was a tremendous addition, as it made walks through the neighborhood a dream. And when baby slept she could do so undisturbed in the very portable and very cozy carry cot. The customer service is also excellent. When I had issues with the front wheel, I contacted MB online, and they wrote back with detailed instructions about how to adjust the tension in the "bush nut cap," so that the ride would be continuously smooth. This is what I learned: The terrain is outfitted with about 5 degrees of play in the front wheel in the locked mode. This intended "play" is designed into the front wheel for a couple of reasons: 1. This allows the pusher to manipulate the stroller's direction slightly to keep a straight track on uneven terrain by applying side-pressure to the handlebar. This is also good for making slight arcs in travel to pass slower walkers on a paved path without lifting the front. 2. On uneven terrain (all-terrain), a degree of play is needed to keep the stroller tracking straight. Like in all gravity sports (skiing, mountain biking, kayaking, etc.) a fluid and relaxed steering mechanism allows the body-in-motion to better follow the intended vector. Other jogging strollers out there, like the Baby Jogger, use a totally fixed front wheel. This is intended for running on smooth terrain, in a straight line. Whenever ANY manipulation in direction needs to be made, the front wheel will have to be lifted off the ground, an experience that I had with my two previous joggers, which were all made by Baby Jogger. We also tested the Terrain this summer on our cross country driving trip. Not only did it fold up compactly enough so that we could fit it and our four children in our mid-size SUV, it handled the trails in various National Parks like a dream. We took it up and down mountainsides in the Tetons, narrow switch backs in Bryce, and uneven terrain in Zion. If you want a stroller that can tackle any terrain and fold up when you're on the road, the Mountain Buggy Terrain is your best ride. ****The only reason that I didn't give the stroller 5 stars, is that they refuse to include the pump with the stroller. It may seem like a small issue, but as you do need to keep the tires fully pumped for a smooth ride, it would make sense for the manufacturer to include the small and relatively inexpensive hand pump in the cost of this pricey stroller."