Yepp... still the ol Giant Defy. I re-cabled it last year, took it all apart, clean and lube. It was a much nicer ride. Amazing how a little bit of TLC does.
I'm riding Gatorskins 25's... I had a series of punctures that left me in some bad places. I was too lazy to put in a new tube in myself so I went to my LBS. Three rounds of tubes later....They hadn't noticed that I had a thorn that kept puncturing the tube. It was small and would work a puncture after a bit of time... you know when you are 20 miles in the middle of nowhere without cell service. I ended up buying Gatorskins vowing never to have a puncture again. Needless to say I don't go to that bike shop any longer. I have a pair of Bontrager T2's but they are 28's... I think I can get them on but it's going to be close.
The stock wheels are in okay shape... no visible signs of a problem. They can be run tubeless I suppose as an upgrade?