e-filing Issues

After reading the threads on e-filing and some of the issues encountered - decided to print and mail federal and state returns.

Besides postage - and perhaps taking longer to get the refund....are there any other "cons" to mailing versus efiling? Someone told me the IRS actually inspects returns that are received in the mail, as opposed to returns that are filed electronically. But I doubt that....they are likely simply keyed into the same system that accepts returns electronically.

Thoughts - pros or cons - to mailing vs e-file via TT?