My kids love this trailer. I bought this trailer because it was one of only two trailers I could find with a good quality front wheel that swivels AND locks. I am planning on using it in lieu of a car quite a bit so I wanted something I could take for a stroll, to the parks and jogging as well as on errands behind the bike. So far we have only taken it jogging. I hesitated getting this because there are similar ones out there for much less, but since in comes with the extra bike hitch, hooks, and cup holder/organizer I got it anyway.
Some things I like:
-It has two separate lap belts.
-The seat is 1-2 inches in front of the axle.(I have read reviews on some trailers complaining about kids sitting on a bar)
-Has a stiff seat with padding. side note: the back of the seat is slightly reclined, when my younger one falls asleep his head does not fall forward (that I notice anyway)
-glides very smoothly, pushes through gravel fine.
-I have plenty of room in front of my feet while jogging. I don't feel like it is going to tip over backward while jogging. although it doesn't take a lot of weight to tip it, I have never had a problem.
It is pretty wide. I have a 2.5yr old and a almost 1yr old. they fit fine and aren't squashed up against each other. It fits through the exterior door if I take off the side bars. It fits through the inside doorways if I also take off one wheel.
Cons: The brakes don't seem to stop the thing completely but they do slow it down. I haven't taken the time to try adjusting them, maybe they could do better if I did.
The swiveling on the front wheel is poorly designed. It does not swivel easily, I have been able to loosen it up a little though. no ball bearings just metal rubbing on plastic. The nut holding it in loosens some if it the wheel turns a lot. I would still have this wheel over the smaller hard plastic ones though.
update: It leans forward slightly when using as a trailer compared to stroller mode. This puts kids more upright and they fall forward when they fall asleep. other than that it is great as a trailer. I do put a small pillow/pad behind them so their heads are more comfortable with the helmets. It is easy to pull (till you go up hill obviously)
I will update later after I have used it some more. I will also respond to comments if anyone wants to ask any questions about it.
Also, more info in the comments if you care to read them.