I had my original Thermapen for over 13 years, and it is still working in my Brother-in-Law's care. A couple years ago I upgraded to the new Thermapen 1.
Very happy with their products; I own a large collection of Thermoworks Products, and have gifted a lot of new Thermoworks items away. There has even had random drawings on The BBQ-Brethren and sent Thermapens, Dots, and Dashes as prizes here.
If anyone hasn't tried the Thermoworks Silicone tools, you really should they are awesome. They just recently released a silicone ladle, and a silicone turner spatula, both well made. Follow their website and they have the silicone tools for 40-50% off on the silicone items. They make great gifts.