Comment by kavalg

It depends. If fed with high quality content (e.g. publications) results are decent and mostly on the positive side of time savings/value. Try to ask it a simple question, such as "pros and cons of these two smartphones" and it will suck up marketing bullshit from the internet and give you a convincing, but useless answer. I was really surprised to find this out, because I've been mostly living in the "scientific research" bubble, where it performs good to excellent and really saves time.