My TC100 arrived this week. I also own a Coolfire IV. It is a little wider than the Coolfire, which makes for a better feel in my hand, and it seems a little lighter which is also great. In TC mode, it seems to be very, very accurate. Impressed with the accuracy. I have several devices that do TC but I won't use them in TC mode because of their inaccuracy, so this is a big deal for me. This will be used mainly in TC mode for that reason. I really couldn't find any negatives with this device... and I tried.
Thank you Innokin and
@Innokin_Ash for such a wonderful device!