Is Solipsism irrational (the philosophical position of "Cognitio Ergo Sum")?

Sorry to not really give a very long description like I usually do, I just can't think of much to say about this topic.
I personally think it is entirely a rational and logical claim, and it can't really be proved nor disproved.
While I am a sort of agnostic concerning Solipsism, partly because I view it is better to live your life as if everybody is real, but it still can't really be certain.
I mean I may just be a projection of somebody else's imagination, I may just be a piece of coding in the matrix or inception.
I don't really see what complaints people have against Solipsism.