i am on my second set of sumitomo htrziii I like them. Overall they ride well, grip feels good, and I have done 1 track day on them, my very first ever. For the price they are an excellent daily driver tire. I wanted something with a bit higher treadwear rating. The stock tires that come on the gsr are amazing, but since they grip so well they seem to wear out much faster maybe its a softer rubber.
I had falkens on my first car lol honda prelude and I autocrossed that car a lot. I didnt like those tires. They were really soft and i didnt feel confident during the season I used them for autocross. Anyways get what you want also check out tirerack.com and see the reviews on each tire.
I plan to keep going with these tires as I am happy with the way they have performed.