To anyone who has landed or been to Paris Airport?!?

I'm going to be landing in Paris Airport on my way to my destination. It looks pretty big so I was wondering if anyone who has flown into Paris before could tell me....Is it easy to get around that airport and will I have have plenty of time to get to where I need to be to catch my next flight...I'll be there for a hour in a half without delays...Will I have time to explore some stores in there airport while I'm there? Oh and this is completely random but will I be able to see the Eiffel Tower from the plane while landing there? :D lol