I run a business and had been using no-name Polo's for about 9 months from other websites. After that time, they faded, tore and started to de-thread in certain areas. After looking around, I ordered one of these and started testing since I have the lighter micro-fiber version of it and love it. That shirt went to Sicily, Italy for a job for 2 weeks during August and I was much better off than others. When this shirt arrived, I immediately stopped wearing the Polo's and went without a company logo - just didn't care.
I'm a bigger guy that tends to be a walking heater, so the vents REALLY make a difference. The loose fit of this shirt helps that aspect as well. The pockets aren't just good for fishing as I keep a pen, phone, notepad and other odds and ends in my shirt pockets instead of in my pants and in a holster. My only complaint is that it picks up lint/dust more than the polo's do.