Will I really be Locked in a room?

Some rooms will have locked doors that you need to open to proceed, but even those doors have appropriate exit hardware/buttons in case you need to leave the room from the nearest exit early for any reason.

How Difficult are the Rooms?

The rooms are challenging to most groups, it’s part of the appeal! Some groups will not succeed.  Use your wit, logic, communication, deductive reasoning and observational skills.