This stroller is easy to put together, seems sturdy and is easy to maneuver. Both my dogs fit inside with enough room to lay down. I wish the inside had a little more head room, but it is otherwise comfy for my two 15 pound dogs. I used to have a Pet Gear No Zip stroller, but the front wheel fell apart after about a year of daily use. The booyah stroller seems like it won't have that issue and it is far easier to push with the dogs moving around inside than the Pet Gear was. In fact, it's pretty comfortable to jog with this stroller as the dogs walk from the front to the back and there are none of the weight distribution issues the Pet Gear stroller had. It is a little harder to turn quickly, though.I doubt I will use it as a bike trailer very often, but I like to have the option. I did have to add a little bed and folded up towel to the inside to make it more comfortable and cover up some metal parts that might hurt if the dogs bumped them during the ride. There is a tether on the inside--I added a leash spliter so I could hook both dogs up to it. The nice thing about the design is that it is very hard for my dogs to jump out. Both my dogs frequently jumped from the Pet Gear stroller, but I was able to walk for over 40 minutes with the front flap open and not a single jump. Overall, I'm pretty pleased.