Personally, I
really like my Burley flatbed. Very light unloaded, rides very nicely so that one can forget they are pulling it even on hills, holds up to 100 lbs. It has quick release wheels, your choice of tires for an extra charge, and it folds flat for storage. Got it for a good deal at the Bike Trailer Shop online. I also bought a big cheap plastic lockable box for tossing items into it. (Made a fuss over it in another post)