1. They have in each compartment chairs facing both directions. Why? Why can't they all be in one direction so people aren't facing the wrong way. Many people feel sick if they do.
2. All the announcements are in french ONLY. So if u don't know french, you don't have a bloody clue as to what's going on!
3. Their stations are so poorly designed!
See, because of "2" you need to keep reading station names as you arrive. These names are written on a typical sign board. This is fine during the day but at night, you CANNOT read it because its not LIT!! So unless by some divine intervention you accidentally get off at the right stop, you will miss it for sure. Sure you could ask around you but the trains don't run very full so there is every chance that there might not be people around.