For me, this is the best stroller. Its chassis is very durable and stable, with no rattling plastics. We were planning to buy off-road wheels later; however, it wasn't necessary at all, as we were using the stroller with the classic ones a lot and never had a problem with bad terrain.
The carrycot is very large and spacious. Another advantage is also the extended sun canopy, which I really appreciated during the summer. The storage space underneath the stroller is also great, as it is waterproof and you can fit a lot of stuff inside.
It is very easy to fold the Trailz. The only disadvantage is the fact that it is a little bit heavier. However, this is due to the high-quality aluminum chassis. I would definitely buy this stroller again, as I find it perfect.