I have an AVX as my grab and go EQ
it’s a lot lighter than my EQ6...
It’s pretty sturdy, and the finish is generally OK but there are some plasticky covers that are vulnerable to impact and it’s got a grouchy noise to it. Mine is one of the early ones.
The big plus is the handset software is a little more advanced, the all-star polar alignment routine works reasonably well, and the gotos tend to be more accurate even with my 8” SCT on board. There is an available ASCOM driver which connects via the handset.
From a payload point of view I can’t imagine there’s anything to separate them in practice, although the AVX tripod has 2” legs like the EQ6, so I’m sure that helps with sturdiness.