For the time i used it taking a cost/ weight analysis it really wasn't worth my time to have in my bag. I swapped it out for a cheapo 70-300 that is half the weight and a 1/10th of the value, again i use it rarely but it does come in handy for knocking tents pegs into the ground...thats how much i value it.
Agreed. I kept my Canon 70-200 2.8/II as I transitioned from Canon DSLRs to Sony Mirrorlesses. It worked fine on the mirrorless with a Metabones adapter. It may seem counterintuitive, but I found myself using the 70-200 less and less as the rest of my gear got lighter. I got spoiled by ultralight Sony gear and my tolerance for lugging around heavy stuff dwindled. So I sold it.
I picked up the Sony FE 70-200 f/4. Went from a 3.28 lb to a 1.85 lb lens. Lost a stop, but I actually use a telephoto again! And it's much much sharper. But still, the Sony 70-200 f/4 is a heavy lens, so I rarely take it with me on trips that involve air travel.