Other reviews criticize the luggage handle on the 45 model. I have the 65 and that handle is better than the 45, no doubt about it. Is it a problem? well, sort of. The 45's handle does not provide enough torsional/rotational resistance. Example: I was pulling the 45 on stones and grass. The left wheel hit a stone (the 65 would have run right over it) and pulled the 45 creating a twist. The handle didn't provide enough resistance and the handle twisted. This caused me to stop and adjust my trajectory. Not a big deal. However, when you have time constraints (I use my 45 for work), or when your hands are full, then this becomes a nuisance. Same issue when I pull the 45 on and off the trailer ramp. I have to square up so that both wheels hit the ramp at the same time or, i encounter the same situation. Now, it sounds like I'm being picky; but consider this: My 65 can bounce down 98 stairs to get to the vacation rental on the edge of one of the finger lakes, in NY state, without any issue. The 65's handle is rigid and can resist rotation forces from an uneven fall from step to step. Image shows the twist. I love RovR!!! Thanks for listening. Cheers!