I have two Thermopops that I've had for years, and they are accurate, and I just replaced the original battery in one, so battery life is excellent also.
I also have a classic Thermopen that occupies space in my drawer as I much prefer the Thermopop.
Looks like a ThermoPop 2. Very nice for that price and their name brand. I think Thermoworks is facing some headwinds with its higher end products given the current economic pressures. This seems to be a thoughtful update of an already nice thermometer. When times are tougher, it makes sense to have a strong price leader to offer.
Yes, it is not meant to be a leave in thermometer. The new one is a little bigger and has a larger and improved display. Maybe slightly faster and also now waterproof. Pretty nice for $35, although that will buy you two decent ThermoPro thermometers with money left over for 3/4 gallon of gas!