Very touristy, pricey, and packed but must-see nevertheless.
Paris is a whirlwind and hogepodge of different cuisines, music traditions, cultures and artistic elements. You'll see shwarma places all over. Cafes, brasseries, and small boulangeries/patisseries are literally on every single street with few exceptions. I loved the city for its ability to exploit its own stereotypes (think crepes, scarves, wine picnics, fashion) and yet offer me a modern French city full of diversity and problems. I'd go back at least once more.
Insider Tip:Hit the petit grec (look it up on trip advisor) the portions are unfinishable and well-worth the wait in terms of packed flavour and quality of ingredients. These guys don't mess about. Also, if you're there a friday, sat, or sun (or stat. holiday) and 25 or under pick up a day pass for about 3 euros and change. Trust me. As per the eiffel tower, go later in the evening just before sun down and walk up the stairs (4 euros) you can come back down the elevator. It's a good workout and it's manageable.