Tennessee's shall-issue started off restrictive for the nay-sayers used to the discretionary system (some counties no-issue for all practical puposes). But as the prophesied "rivers of blood in the streets" and "OK Corral gunfights between soccer moms over parking spaces" did not happen, former opponents came around. Restrictions, like mandatory liability insurance, were dropped. I certainly hope the experience of Illinois will be the same.
We still have 4 hours class on self-defense law (written exam, passing score required), 4 hours class on gun safety (written exam, passing score required), qualification score at the firing range, (~$75 to get certified as eligible) then application processing (fingerprints, BG check, etc., another $115). The $180 fees hurt the people who probably need a carry permit more than me--minority home and business owners who must walk and travel in neighborhoods with drug gang activity.
But frankly it beats the discretionary system, based on the whim (or politics) of the sheriff. It is like the driver's license: you qualify and apply, it shall be issued. (What the haitch happened to the gun-controller mantra that guns should be regulated like cars? They always back confiscatory registration taxes and discretionary license schemes, designed to deny not regulate.)
Illinois shall-issue is a step above no-issue. No-issue meant people often decided to carry for self-defense on their own, ending up in gun court. Don B. Kates "Restricting Handguns: Liberal Skeptics Speak Out" has some testimony from Chicago gun judges back when they were allowed discretion to dismiss charges agains non-criminal citizens caught carrying purely for self-defense: practically every gun carry arrest required gross violation of 4th Amendment reasonable search and seizure and it was easy to suppress evidence and dismiss charges. However, boys and girls, with a shall-issue permit system there is no excuse to carry w/o permit.