The only thing I reserve judgement on Klose is his distribution, lots of unsure side foot passes, but as you state, could be a bit rusty.. He's not afraid of a tackle, has a good reading of the game and has a good presence about him..
I don't recall saying he was, and you bring up a former manager again.... Pring may feel he was unwanted, but like Vyner, Scott and Semenyo, he's only ready to play now due to those loans. Players go on loan to get experience, look at David Beckham, Harry Kane etc
For the 1 game I've seen Klose is that he likes a tackle and thought he did well overall last night. Have to say Reading were as bad as I've seen this season. Klose just needs to be careful.