This one has been through a lot, but has served me really well. The only issue is the bottom left wheel connection has broken off on the plastic (where the screw meets). So it has a tendency to get caught if you're backing up on time something rough.
Other than that, everything functions well, and I've never had any weight issues when flying with it.
If you're in the NYC area, I'm happy to drive [within reason].
Let me know if you have any questions.
Thanks,
Cam