It is super easy to assemble but feels sturdy. Its very light when not loaded and I have taken it to parks for off-site WODs.
The quality you get for this price is hard to beat! I highly recommend this for any garage gym.
One of the big advantage of sleds is that you can easily "titrate" (adjust) the load to meet your cardio needs.
Three other big pluses: of all machines, a sled is easiest on the joints and feet (like when you're old like us), it's also much, much less stressful on the back (unlike a rower or even a bike), and if you both push and pull like us, there's a definite upper body workout, too. We just take the car out of the garage and, using the back handles, push and pull the sled the length of the garage floor. Easy peasy, safe, and effective.
We experimented with different weights for loads, and found our personal load needs. It was interesting that we did not have to make moving the sled super-difficult. We found that even without a big (but with a big enough) load, after about 3 minutes, it's VERY easy to get > 80% max. heart rate and keep it there. (Of course, if you are already strong, younger, and very fit, such a light sled, even with a good amount of weight, may be too little workout for you. YMMV).
And EXCELLENT customer service. One "handle" came out of the box with nicks at the top (where you put your hands). It wasn't a big deal, but there was a chance we'd cut ourselves someday on the edges of rough bare metal. I simply took a photo of the defect and sent it to email@example.com. They sent a perfect handle back, with their apologies.
We couldn't be happier with the sled, ordering and shipping were easy and prompt, and we are very impressed with fringesports' after-sales customer service.