Thinking of cancelling my orientaion with Covenant

I just graduated from Roadmaster out of Indy...

I have an orientation date setup with Covenant Transport in Chatanooga,TN on Wednesday the 5th, but I have seen on forums repeatedly over and over now that Covenant is bad and to stay away.

Should I cancel my orientation and tell them I changed my mind BEFORE it's too late, so that I can work for a company that doesn't have SO MANY complaints about it?
I wasn't sure if that would look bad on my record or if that would even show up at all if I cancelled...

After researching a bit more I found that Crete seems to be pretty good.

What should I do?

Thanks in advance to any and all who reply.