when I switched from VZW to Tmo, I got the LG V20. They had a crazy one day sale for $360. It was a pretty good phone, I like a big sized phone like that. However it did have a bit of a lag, but I could deal with that. It ate batteries though. I had a spare battery and a charging cradle, and I was swapping batteries at least once a day, sometimes twice a day. The V20 also felt a bit fragile to me.
I bailed on it for the S8+, and i am much happier. I still want the KEYone due to the PKB, but I dont miss the V20.
I had the V10 as well, and it also drank batteries.