I bought a Bogert tow bar ten years ago. This was before the Van's tow bar came out. It has gotten pretty worn out and developed cracks in the tubes. I got a lot of use out of the tow bar and can't really complain. I did contact Bogert and they replaced the tow bar for no charge! After 10 years! Now that is good customer service.
I also have the Van's RV-12 tow bar which is a nice light aluminum unit that is easy to carry in the airplane.
I use the Bogert for maneuvering the airplane in and out of the hangar. It is pretty robust and you can push and pull on it without needing to push on the propeller.
Incidentally, the Bogert catalog is a little confusing about whether the RVA tow bar fits the -12 with a pant on the nose wheel.
But I just got the new bar and can confirm that it does fit the wheel pant.
As I mentioned, I bought the Bogert prior to the Van's bar being available and if you need a tow bar to carry in the airplane the Van's tow bar is light and compact. If you want a more heavy duty tow bar for general use around the home base the Bogert is fast to use and a robust heavy (compared to the Van's) piece of gear. It does collapse for stowage but not nearly as compact as the Van's.
I like having them both.