French language Q&A Forum

I am using this as review but, maybe with a disclaimer you should offer at a slow and a native speed. I think that peoples ears and brains need to learn that language at native speed. Some overwhelming noncomprehension to help people realize how real language acquisition works. Maybe you do this for subscribers or something and I'm not too familiar with your services yet

The week (in which) they stayed at the hotel went quickly.

?....La semaine pendant laquelle ils sont restés...?

I am still having issues with understanding the usage of toujours in the past tense vs imparfait. In Lawless french ( https://www.lawlessfrench.com/grammar/passe-compose-vs-imparfait/) she states, "In a nutshell, the passé composé names something that happened, WITH A CLEAR BEGINNING AND END." She also says that- 'toujours' can be used in Passé composé if it represents 'always (and still now) (this explains its usage in this exercise, but its an ongoing feeling-not over and done!).  However , I find these 2 statements mutually exclusive. How do I determine which form to use under the circumstances?

Bonjour! 

Why does "J'en vaux vraiment la peine" have en whereas "Ça vaut la peine" doesn't? I've encountered the latter phrase before but with en (i.e. Ça en vaut la peine). 

Will appreciate further clarity on this :)

Merci!