I have a T150, recently replaced under their product recall. I actually preferred the older version, or at least I did until it failed as per the recall
I use it a lot for basic fault finding and checks, and the obvious safe isolation.
Can't comment on how they compare to others as I've only ever used a T150 as my AVI, apart from a brief spell using a Socket and See AVI which just seemed flimsy by comparison and certainly didn't have such a stout interconnect cable.
Curious.
When fluke replaced your T150 did you have to prove the original invoice/ receipt ?.
Reason I am asking is I have the chance to buy a second hand one fairly cheap (but not that cheap) but my fear is if it develops the fault will Fluke replace it (if you see what I mean).