maybe 18-24 months ago: i had a prime (exquisite) j-neck. i picked up a j style body from CL with cheapie pick ups and so i wanted to change those out. i'd never used anything but EMG (in active basses), but i was unsure how my 'parts build' would turn out. so: i ordered the redactives, rationalizing that it was a compromise, but maybe it would turn out OK without the cost (only 25-30%) of the EMG choices i would have made. glad to say: the parts build turned out to be a real player for me, the redactives are a part of that bass now, i don't regret it, i'm used to them, depend on them, and don't feel i need to change them. i also bought their control system for the redactive j-bass set up (don't remember what they called it).
having said all of that: i'm not a "tone chaser" (i just posted to that effect in a thread earlier!). i think i would recommend EMG's (or comparable) to anyone wanting one of the "best," as they probably are better in some way, but i've had 0 problems with the readactives. in that j-bass, i have everything i want (it's a fretless): i can get any tone i need for any occasion (mostly jazz, but a lot of variety at wedding/corporate events). and for me: the redactives really showed their stuff when i went from roto rounds to DR coated (rounds). so, in my experience: they're great!
i'm slowly building another parts/mods instrument and i'm actually considering the redactives! it would be a pj set up, so i'd get to sample their p pickup. i just think they are another option for anyone's bass.
i know a lot of players were dissing them at one point (maybe they still are). i don't remember what the complaints centered around. i read those pro's and con's before i bought them. i had a success --- i haven't looked back!