I don't have a T3, but have wanted one since I first saw them. I do have the Q3 and P1 tho, along with several other small-single cell LED lights such as my Vital Stream (my own frankenstein setup), Jet1, Nextorch Z1, and Luxogen LR5-3W. The Q3 is a great light for the money for it's combination of attractive design, ease of modding, and good machining. The P1 is also a good value for the size, performance, and regulation it offers (personally not my favorite design). However, I wouldn't say the Q3 has the best machining...it's good, but many of my other lights are better. The P1 has good machining, but I can see where compromises were made. Tho I don't have the T3, from the various reviews and pictures I've seen of the outside and innards, it looks to have better machining and a more thought out design than the Q3 or P1. The price reflects it also tho. I still try to see how I'll use the next light I purchase so I don't have shelf queens, but I do have many lights that are similar in their characteristics/design/function. I don't have a problem with that. Even tho I still try to justify the use/need of each purchase, I do also know that beyond a light in the house and a light in my car, everything else is just for kicks. If you like the T3 and can afford it, it'd be a great addition.