I got the TM15, and I'm not that impressed.
First - it arrives with no batteries so there is some additional cost. It feels like a brick in your fist - it's heavy (no surprize). But the part I really dislike is the one button controls everything (patent pending). The operating instructions for the one button operation are complex including half pushing and being careful of timing (holding for less than a second or more than a second). Even turning it off is complex because if you don't hold the off button for more that 2 second, it goes into a standby mode that consumes power.
So - if this flashlight is to be used by only one person, and they are up for memorizing the complex set of commands to get to the different modes - then go for it. But if it is a light to be shared by a household, you will probably get complaints from other household members about the light appearing to do whatever it wants. Since it really is too heavy for an EDC, I would expect the "household light" to be the more common application.