Any of the clones I’ve tried with my kids have barely had compatibility with themselves - at least not to the standard LEGO sets. They don’t grip as well, they fall apart, even their colors can vary. Stay away.
It is a matter of quality. LEGO uses more expensive plastic, and scraps their molds at the first sign of wear. The competitors use cheaper plastics and keep using their molds until they are significantly out of tolerance. This is how they are able to be much cheaper.
There isn't anything magic about what lego does, other than they do it.
There isn't anything magic about what lego does, other than they do it.