These Powerlink tires which go on the back wheel, the one that puts power down are supple, grippy, and high performance tires. I rode these lightly from January to May, then 7 straight days for hundreds of miles through Utah's national parks and scenic byways. They do wear somewhat faster than long lasting training tires. They lasted about 600-800 miles before they had noticeable squaring. I rode them for another 400 miles through Utah's scenic byways without issue.
However, these tires are awesome, straight out of the package and then lose their grip and performance over time as they wear. I had the Griplinks in the front and same story. After about 1500 miles they were very thin and I replaced them. I had a couple punctures but due to wire off a car tire tread and a huge thorn (twice) from trees.
I'd by these again when on sale and if I wanted grippy, high performance tires. Otherwise, I'm training on Vittoria III, Continental training tires, and Hutchinson 2, which all tend to last longer for commuting and training rides.