Ehhh. I've found them to be more reliable for certain kinds of searches - government records and the like - than DDG, yahoo or bing.

As far as general websites and social media shit - yeah, it's a hot mess.

Image search on bing is pretty decent right now, though there's no guarantee how long that will last.

Google's image searches (I primarily look for royalty-free graphics) are now keyed to the sites like shutterstock, dreamstime and adobe which leaves a lot to be desired.