What is it like to go into Canada? I hear some drivers like it and some don't. Interested to hear pros and cons. Thanks.

Canada is easy.
You pick up your load as usual, then fax the BOL and a cover sheet with a PARS sticker (provided by Stevens) to the Border Broker.
Then before you cross, check with the broker to make sure all is well. I've never had them NOT complete the paperwork before I arrived at the border.
when you arrive at the border, show the BOL with PARS sticker, along with your passport or enhanced license to the border agent and you're done.
Easy.
If you are carrying a meat load, you will need to stop at the border and run into the broker's office to sign a piece of paperwork to cancel the bond, but that takes two minutes.